2026-07-09T09:53:10Z https://njump.me zkCoins https://njump.me/npub126ap5uuyez2puq363jp8ntveyhy35p4xts2xgu8k70s727spzeash2e85m https://image.nostr.build/ca92aff13933683f465eea16ce8cb326eceb650cf48e51766646e7b1eba99fd9.png https://image.nostr.build/ca92aff13933683f465eea16ce8cb326eceb650cf48e51766646e7b1eba99fd9.png https://njump.me/nevent1qqsrmlujcucgm54uzyc5ka5z0n3yah4axeqmyrv9ddf0ese7mxrwsfgzyptt5xnnsnyfg8sz82xgy7ddnyjujxsx5ewpgers7me7ret6qyt8k4j83w2 Serious privacy starts with claims that anyone can inspect and challenge<br/><br/>Shielded CSV: Private and Efficient Client-Side Validation was published as Cryptology ePrint 2025/068 by Jonas Nick, Liam Eagen and Robin Linus. It describes private client-side-validated token transfers secured by Bitcoin&#39;s ordering and proof of work.<br/><br/>The zkCoins specification develops one concrete target design from that research, with explicit wire formats, custody boundaries, delivery, recovery and operating roles. It remains independent of any current implementation, so protocol claims and implementation evidence can be tested separately.<br/><br/>For Bitcoiners, that separation is useful: inspect the construction, reproduce the vectors and evaluate real proofs and inscriptions on their own evidence.<br/><br/> <img src="https://image.nostr.build/115dd81329c597abe6ca7407560e8f63a76c461aede390c96eaa6d204bb76796.jpg"> 2026-07-17T14:00:43Z https://njump.me/nevent1qqswrk3rx97htgcsv00xfppnqu7xypyfzecx857etjzyppq63td6puszyptt5xnnsnyfg8sz82xgy7ddnyjujxsx5ewpgers7me7ret6qyt8k0u3n0r If a project promises Bitcoin privacy, ask exactly what is private — and whom you must trust<br/><br/>The zkCoins target design keeps Bitcoin as the ordering and settlement layer. It needs no separate chain, native protocol token or Bitcoin consensus change. It supports creator-issued protocol assets.<br/><br/>Spend authority stays in the wallet. Publishers aggregate and anchor batches without receiving spend keys, and proof verification prevents an accepted forged transition. Because publishers are permissionless and replaceable, users can choose another if one delays or omits a record.<br/><br/>That gives Bitcoiners a familiar model: verify correctness cryptographically, preserve self-custody and choose the infrastructure that supplies liveness.<br/><br/> <img src="https://image.nostr.build/726abbce718b4c2777948d9f2a7bd4239e78f179be0ef2cc539f7a769905687d.jpg"> 2026-07-15T14:01:33Z https://njump.me/nevent1qqs09lalumhe7grdhupa89mq9v3vp3q80d36l3pzfyl355udj9gcmggzyptt5xnnsnyfg8sz82xgy7ddnyjujxsx5ewpgers7me7ret6qyt8kjyuqt5 Bitcoin blockspace is public and scarce<br/><br/>The zkCoins target design amortises one publisher batch across many private, client-validated spends. The current specification defines a constant 231-byte inscription payload per batch. Including the funding commit and reveal transaction, it estimates about 318 vBytes per batch — about 3.2 vBytes per spend when a batch contains 100 spends.<br/><br/>Hidden from chain-only observers: individual amounts, assets, senders, receivers, the transaction graph and even the batch record count. Still visible: the protocol marker and version, publisher key, accumulator roots, bundle locator, block anchor and signature.<br/><br/>Privacy through zero-knowledge proofs and client-side validation, anchored to Bitcoin without a consensus change.<br/><br/> <img src="https://image.nostr.build/0b8d2977d4797c09e6292dd477454d08cd3773a353cd3cc9534e464014efc6ca.png"> 2026-07-13T17:26:00Z https://njump.me/nevent1qqsrk5jnefhcvw4qzsd2452h7pyhnsuvwat9lxq35663yddpkf9sl7czyptt5xnnsnyfg8sz82xgy7ddnyjujxsx5ewpgers7me7ret6qyt8kz95f7a Bitcoin payments are public by default.<br/><br/>zkCoins is designed as a private client-side-validation payment layer anchored to Bitcoin — without changing Bitcoin consensus.<br/><br/>Amounts, assets, sender, receiver and the transaction graph stay off-chain. Zero-knowledge proofs establish validity, while a permissionless publisher anchors a whole batch of spends with a constant 231-byte inscription payload.<br/><br/>Bitcoin still sees protocol commitments and publisher metadata, but no individual payment amount or parties.<br/><br/>No separate chain. No native protocol token. No soft fork.<br/><br/>The specification describes the target design. We are building and testing the implementation in public: <a href="https://zkcoins.com">https://zkcoins.com</a><br/><br/> <img src="https://image.nostr.build/698aa1d8db1e3c31448dbc19d0a0f2a65c529c6707e6f7a782cbcab13879e3fc.png"> 2026-07-11T14:30:20Z https://njump.me/nevent1qqsz7k8hdrxq6x7s8cvnn9vgm8aw9flsatpcy8xd56f2ke9zpalkzygzyptt5xnnsnyfg8sz82xgy7ddnyjujxsx5ewpgers7me7ret6qyt8k7twkck Your Bitcoin has no privacy.<br/><br/>Every Bitcoin payment you have ever made is still sitting on a public ledger, readable by anyone, forever. Your salary, your savings, the rent you paid last month. All of it, in the open...<br/><br/>Today we are showing what we built to fix that, in public.<br/><br/>zkCoins makes Bitcoin private<br/><br/>Value on Bitcoin, sent and received privately, while amounts, sender, receiver and history all stay off-chain — proven with zero-knowledge and anchored to Bitcoin as one constant 231-byte inscription per batch. Nothing legible ever touches the chain.<br/><br/>The full loop — create, mint, send, receive — already runs end to end on a public signet. <br/><br/>No new coin. No sidechain. No soft fork. Just Bitcoin, finally private.<br/><br/> <img src="https://image.nostr.build/636a382aa1886c8686a236317ce0e8c89ba03b2f6de8a51a4ac60f280f527530.jpg"> 2026-07-11T14:00:44Z https://njump.me/nevent1qqsynvs0kwdu0vthraq6ps2j0kvkrd3rpaj765htmcarqyvzk5sffuczyptt5xnnsnyfg8sz82xgy7ddnyjujxsx5ewpgers7me7ret6qyt8kqafhgu Your Bitcoin is now private!<br/><br/>Every Bitcoin payment you have ever made is still sitting on a public ledger, readable by anyone, forever. Your salary, your savings, the rent you paid last month. All of it, in the open...<br/><br/>Today we are showing what we built to fix that, in public. <br/><br/>zkCoins makes Bitcoin private<br/><br/>Real BTC, sent and received, while amounts, sender, receiver and history all stay off-chain, proven with zero-knowledge and anchored to Bitcoin as one constant 231-byte inscription per batch. Nothing legible ever touches the chain.<br/><br/>No new coin! No sidechain! No soft fork! Just Bitcoin, finally private!<br/><br/> <img src="https://image.nostr.build/76e626ad552ed7affd2cee5e2aac5c733d1c0280d9b2f39c4776dd37ab540f81.jpg"> 2026-07-10T13:30:24Z https://njump.me/nevent1qqsx2k9tpgy38zaf3ut2mqj6zfwesv32jep2eauelqdnnkl5h8w26pgzyptt5xnnsnyfg8sz82xgy7ddnyjujxsx5ewpgers7me7ret6qyt8kd4dust Bitcoin is the most transparent money ever made!<br/><br/>Every payment you have ever sent still sits on a public ledger, readable by anyone, forever. Your salary. Your savings.<br/><br/>That was never the promise!<br/><br/>zkCoins fixes it!<br/><br/>Real Bitcoin, sent and received, while the chain shows nothing legible. Amounts, sender, receiver and history stay off-chain, proven with zero-knowledge and anchored to Bitcoin as one constant 231-byte inscription per batch.<br/><br/>Let us be blunt about what this is not<br/>- Not a sidechain <br/>- Not a soft fork waiting on consensus<br/>- Not a mixer <br/><br/>It is stronger cryptography applied to the Bitcoin you already hold. It works on Bitcoin as it exists today — no consensus change, no new opcodes. <br/><br/>Your keys never leave your device!<br/><br/> <img src="https://image.nostr.build/70f7efc324c82a574af0084dbd1af52117b7819bb0c64fe20c088721c45b04da.jpg"> 2026-07-09T13:29:58Z https://njump.me/nevent1qqsy7zcgj664w6g7fpn93s7e9nv5tpy2ynhk39my8hcmn29w7dpj0kqzyptt5xnnsnyfg8sz82xgy7ddnyjujxsx5ewpgers7me7ret6qyt8k4vs7gn Bitcoin is the most transparent money ever made!<br/><br/>Every payment you have ever sent still sits on a public ledger, readable by anyone, forever. Your salary. Your savings.<br/><br/>That was never the promise!<br/><br/>zkCoins fixes it!<br/><br/>Real Bitcoin, sent and received, while the chain shows nothing legible. Amounts, sender, receiver and history stay off-chain, proven with zero-knowledge and anchored to Bitcoin as one constant 231-byte inscription per batch.<br/><br/>Let us be blunt about what this is not<br/>- Not a sidechain <br/>- Not a soft fork waiting on consensus<br/>- Not a mixer <br/><br/>It is stronger cryptography applied to the Bitcoin you already hold. It works on Bitcoin as it exists today — no consensus change, no new opcodes. <br/><br/>Your keys never leave your device!<br/><br/> <img src="https://image.nostr.build/70f7efc324c82a574af0084dbd1af52117b7819bb0c64fe20c088721c45b04da.jpg"> 2026-07-09T13:29:38Z https://njump.me/nevent1qqsqpmkr2z5l8u75z3d9dstk8n5n3rxflrphg3k0y2defzyc9v3t7jszyptt5xnnsnyfg8sz82xgy7ddnyjujxsx5ewpgers7me7ret6qyt8krllvjk Bitcoin is the most transparent money ever made!<br/><br/>Every payment you have ever sent still sits on a public ledger, readable by anyone, forever. Your salary. Your savings.<br/><br/>That was never the promise!<br/><br/>zkCoins fixes it!<br/><br/>Real Bitcoin, sent and received, while the chain shows nothing legible. Amounts, sender, receiver and history stay off-chain, proven with zero-knowledge and anchored to Bitcoin as one constant 231-byte inscription per batch.<br/><br/>Let us be blunt about what this is not<br/>- Not a sidechain <br/>- Not a soft fork waiting on consensus<br/>- Not a mixer <br/><br/>It is stronger cryptography applied to the Bitcoin you already hold. It works on Bitcoin as it exists today — no consensus change, no new opcodes. <br/><br/>Your keys never leave your device!<br/><br/> <img src="https://image.nostr.build/70f7efc324c82a574af0084dbd1af52117b7819bb0c64fe20c088721c45b04da.jpg"> 2026-07-09T13:21:44Z https://njump.me/nevent1qqsd68jdgs5kfxyaugczmexksrjwegjxmj6r9ae0yzhgtyyzg8r5ewszyptt5xnnsnyfg8sz82xgy7ddnyjujxsx5ewpgers7me7ret6qyt8k5q092p Bitcoin is the most transparent money ever made!<br/><br/>Every payment you have ever sent still sits on a public ledger — the amount, the sender, the receiver, the entire history — readable by anyone, forever. Your salary. Your savings. The coffee you bought this morning.<br/><br/>That was never the promise!<br/><br/>zkCoins fixes it!<br/><br/>Real Bitcoin, sent and received, while the chain shows nothing legible. Amounts, sender, receiver and history stay off-chain, proven with zero-knowledge and anchored to Bitcoin as one constant 231-byte inscription per batch — roughly 3.2 vBytes per spend, and none of it reveals a thing.<br/><br/>Let us be blunt about what this is not<br/>- Not a new coin <br/>- Not a sidechain <br/>- Not a soft fork waiting on consensus that may never come<br/>- Not a mixer with an anonymity set to pick apart<br/>- Not a rollup with a sequencer to trust<br/><br/>It is stronger cryptography applied to the Bitcoin you already hold. It works on Bitcoin as it exists today — no consensus change, no new opcodes. Your keys never leave your device!<br/><br/> <img src="https://image.nostr.build/70f7efc324c82a574af0084dbd1af52117b7819bb0c64fe20c088721c45b04da.jpg"> 2026-07-09T13:00:56Z https://njump.me/nevent1qqsqdd22ygrmspjz83zcaguc27wfqwrx73dfdgq7l56c9t2ch6nmzfczyptt5xnnsnyfg8sz82xgy7ddnyjujxsx5ewpgers7me7ret6qyt8k46gcrx 🚀 [TEST] zkCoins — private Bitcoin on L1<br/><br/>No altcoin. No soft fork. No coordinator. Just Bitcoin, made private. ⚡<br/><br/>Wallet: <a href="https://zkcoins.app">https://zkcoins.app</a><br/><br/> <img src="https://image.nostr.build/7c536d00929899116512f7af9af3b73d419a7ae8d80936dc5ba1a476d3d6f7a1.jpg"> 2026-07-07T20:33:09Z https://njump.me/nevent1qqsxtslgzua0s4alrrvwtj4lxfqyvmnm5vdeecxpjj8mwvean6ex6xgzyptt5xnnsnyfg8sz82xgy7ddnyjujxsx5ewpgers7me7ret6qyt8k00frer 🚀 [TEST] zkCoins is live on Bitcoin mainnet<br/><br/>Private Bitcoin payments — no altcoin, no soft fork, no coordinator. Your amounts, sender and receiver stay completely private. ⚡<br/><br/>560 bytes per transaction → just 64 bytes on-chain.<br/><br/>Read the paper: <a href="https://eprint.iacr.org/2025/068">https://eprint.iacr.org/2025/068</a><br/><br/>Open the wallet: <a href="https://zkcoins.app">https://zkcoins.app</a><br/><br/><br/><br/> <img src="https://image.nostr.build/17a6d01c424926a8ecb490aa49a21052fe087269e97c58c79e08ca7ea6178e74.png"> 2026-07-07T18:44:34Z