Petit is a French-language surname literally meaning "small" or "little". Notable people with the surname include: Adriana Petit (born 1984), Spanish multidisciplinary artist Alexis Thérèse Petit (17
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f90efda46e45c6bd248e5dd568b71cd9f81c994018547fef671c477e86000a5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21b19dae-a230-4d39-b7bd-5914e1f85c86.json and https://artists.proofprofile.net/proofs/artist/21b19dae-a230-4d39-b7bd-5914e1f85c86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d99e6f0b8ec6e54dcf9ce42b3b149002d79eca72e9d12592872e42dda4754c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2304720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d3d105d5ce98797bbb77d26a582de888bb2dd603ec26d4df8c10d44820f47f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG2338399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e2a2341e83bcbbf82949ac7f6c7d03ebf65bb5f125bb2bc95f80e880e0d319. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITQ002400969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08acc0ef8d61aeeabb5328524cb8d137d77fffd8c099f9e77bb8ff5b98feeba5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2430082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c70bff1d837eb7225e3f7aa6ff7b11ce6b2012d871daad7c17d5dd1c5e814b0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2457880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d99e6f0b8ec6e54dcf9ce42b3b149002d79eca72e9d12592872e42dda4754c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2304720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad774131a7f35102a7423bba4aefc4a6737fb198fac222c30e0bbc19f75cc0f. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITQ002400357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d3d105d5ce98797bbb77d26a582de888bb2dd603ec26d4df8c10d44820f47f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG2338399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fabd34a0bd59ba712a7eadb255d96a5aef83a5a9c09dc368593770966efe093. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITQ002400356.