Introducing Nostringer - unlinkable ring signatures (SAG) for Nostr pubkeys.
Instead of doing some Ghibli stuff I implemented a prototype of unlinkable ring signatures for Nostr.
It's using Monero style Spontaneous Anonymous Group signatures (SAG).
What does it enable ?
Ring signatures allow multiple members of a group to sign a message without revealing which member actually signed it.
I explored this after chatting with nostr:npub1gm7tuvr9atc6u7q3gevjfeyfyvmrlul4y67k7u7hcxztz67ceexs078rf6 who wants to use this concept for WalletScrutiny. Basically his idea would be to let users write reviews as accredited wallet developers. Because of the competition between wallets it's better to not disclose who posted a review.
It would be sufficient to know that it was posted from someone belonging to a group of accredited developers.
Checkout the demo and repo in the links below.
Live demo: https://nostringer.starknetonbitcoin.com
nostr:npub1hr6v96g0phtxwys4x0tm3khawuuykz6s28uzwtj5j0zc7lunu99snw2e29 published this https://github.com/AbdelStark/nostr-mcp
Also I have a quite complete Nostr implementation for n8n AIs, and could potentially port to MCP if there's demand.
For now it has only basic event publishing. If there is demand maybe we can join forces and build a fully fleshed Nostr MCP server
I sent you a dm on telegram mate
Yes. With the new version that is deployed you can pay directly with any wallet compatible with Alby Bitcoin Connect lib
L402 is HTTP for payments, literally, and it's cool!
Built a Rust implementation for an API paywalled with the L402 protocol, as well as a demo frontend.
Try it yourself: https://l402.starknetonbitcoin.com
Pay with Lightning and query the latest Bitcoin block.
L402 protocol: https://l402.org
Rust L402 server repo: https://github.com/AbdelStark/l402-server-example-rs
L402 demo frontend using Nextjs repo: https://github.com/AbdelStark/l402-shield
#bitcoin #lightningnetwork #payment #mcp
So will nostr:npub1hr6v96g0phtxwys4x0tm3khawuuykz6s28uzwtj5j0zc7lunu99snw2e29 work on this? I fed Claude 3.7 many rounds of questions today but can't get far. Current road block is that I'm not sure there is a good, maintained JS library for ring signatures. I found https://github.com/VictorTaelin/lrs with no update in 9 years and https://github.com/HarryR/solcrypto which has no updates in 6 years. Both with minimal activity overall. On noble-curves there was some relevant activity but it did not get beyond a discussion https://github.com/paulmillr/noble-curves/discussions/147
What gives? #askCryptographers nostr:npub1vadcfln4ugt2h9ruwsuwu5vu5am4xaka7pw6m7axy79aqyhp6u5q9knuu7
Let’s discuss about it!
I like the sound of freedom in the morning.
IT ALL COMES BACK TO BITCOIN.
STARKNET IS EXPANDING TO BITCOIN, STARTING TODAY!
THERE IS NO "IF" ANYMORE—IT’S HAPPENING, AND IT’S NOT CONDITIONAL ON OP_CAT OR ANY SOFT FORK.
WE HAVE A PATH FOR OUR BITCOIN EXPANSION THAT IS NOT DEPENDENT ON ANY CHANGES TO BITCOIN.
MULTISIG => BITVM => VALIDITY ROLLUP (IF / WHEN EFFICIENT STARK PROOF VERIFICATION BECOMES POSSIBLE).
CHECK OUT MORE IN THE OFFICIAL ANNOUNCEMENTS: PARTNERSHIPS WITH BITCOIN ECOSYSTEM PLAYERS, STARKWARE ESTABLISHING A STRATEGIC BITCOIN RESERVE, THE BTCFI SEASON PROGRAM, AND MORE.
I AM BEYOND EXCITED ABOUT THIS EXPANSION. FREEDOM TECH IS THE MOST IMPORTANT BATTLE OF OUR GENERATION. BITCOIN IS THE REPRESENTATION OF THIS FIGHT. IT IS THE HOPE TO BUILD A BETTER WORLD BY FIXING THE ASYMMETRY OF POWER.
WE MUST RESTORE SOVEREIGNTY TO INDIVIDUALS.
IT ALL COMES BACK TO BITCOIN.
FIX THE MONEY, FIX THE WORLD!
"The illusion of freedom will continue as long as it's profitable to maintain the illusion." – Frank Zappa
Bitcoin removes the illusion, giving people true financial sovereignty.
The tools exist. The code is ready.
Freedom is inevitable.
Yo, another public good library built by StarkWare exploration team: a Merkle-Sum Sparse Merkle Tree library, written in Rust.
96% test coverage. Working next on full compatibility with the Go implementation of Taproot Assets from Lightning Labs.
nostr:npub12rv5lskctqxxs2c8rf2zlzc7xx3qpvzs3w4etgemauy9thegr43sf485vg here you go, you know what can be done with this!
A Proof of Liabilities Scheme for Ecash Mints!
https://github.com/keep-starknet-strange/mssmt-rs
POL design by Calle: https://gist.github.com/callebtc/ed5228d1d8cbaade0104db5d1cf63939
We are not here to ask for permission. We are not waiting for outdated institutions to change. We are building a parallel system where sovereignty, censorship resistance, freedom of speech and privacy are non-negotiable.
The best way to predict the future is to build it.
To verify them yes.
You generate the proof offchain and you verify it on chain
Those are more specific than the ones in GSR. They are really about making efficient STARK proof verification over a specific prime.
What about M31 arithmetic opcodes for efficient STARK verification on Bitcoin ?
Idea: OP_M31ADD, OP_M31SUB, OP_M31MUL, OP_M31INV operating over the M31 Mersenne prime field.
OP_CAT too generic ? OP_STARK_VERIFY too narrow ? This is something in between.
https://hackmd.io/@abdelhamid/m31-opcodes-bitcoin-stark
#bitcoin #starks #zkp
Cashu x STARKs ? Spending conditions in Cairo nostr:npub12rv5lskctqxxs2c8rf2zlzc7xx3qpvzs3w4etgemauy9thegr43sf485vg ?
Yes.
Here is a video showcasing the generation of a STARK proof of some Cashu spending conditions defined as a Cairo program, and verified by the Cashu Mint.
The STARK proof is generated using STWO.
It enables to define arbitrary Cashu spending conditions easily, in a highly expressive manner, without breaking privacy and proving mathematical guarantee on the integrity of the computation.
The spender define the spending conditions in Cairo.
The receiver generates a STARK proof that conditions are met to spend the tokens.
The Mint verifies the proof and completes the process if the proof is valid.
I know only the second one. Do you recommend the others ? What are their strengths for you ?
Ohhh yeah I love Hunter x Hunter. The chimera ants arc is incredible. Meruem is one of the best antagonist ever. Very good development.
Bon ba personne veut des sats on dirait @Copinmalin hahaha
Allez #nostrfr montrez à nostr:npub1hr6v96g0phtxwys4x0tm3khawuuykz6s28uzwtj5j0zc7lunu99snw2e29 que ça vous ferez plaisir de le voir plus souvent ici.
https://x.com/dimahledba/status
/1877770967507734687
Je suis là les amis et je vais être de plus en plus présent cette année.
Gm.
Time to accelerate Nostr adoption in 2025.
Social network applications but also much more can be done with DVMs.
We can build a true open marketplace for digital services.
Let’s make it happen.