Lepetit or Le Petit is a French surname. (1841–1909) French painter, caricaturist and photographer Annick Lepetit (1638–1662), French writer and poet Maturin Le Petit (1693–1739), Jesuit priest
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 0xb610d0618f6d2e80298fe8cd43957531d2769999986bed9c4506a628721bbf36. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5f16fdf-b921-4570-8ee3-e5c37e2f5d12.json and https://artists.proofprofile.net/proofs/artist/b5f16fdf-b921-4570-8ee3-e5c37e2f5d12.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 0x087360346d46775af0243ff4361f2886a0f3e754cd429dea70ead3f57570ceeb. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/ESA012252998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ea82f02dda982edb911a52b7172e9dd73c82efbad5a8cc7b7fdc19b45b88fc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ESA012252999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe435c385dc12e2b1266b2a854ad3f8c8392a6eb4aff2548e47cc915d3f6525e4. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:50:49Z), 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/ESA012253000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1676426d1b931a9fd290cd437e99f8a979438447193ca15e1049284c2ab6ad6b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ESA012253001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7be03325a7edc28e73911bf8c1327f2ae46f4b24fa6581c319f481b93cb893a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:51:25Z), 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/ESA012253002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334c7f27fe72dd47bc048cd6947958397bb956c7925de9e2d5695076e76d9ae9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ESA012253003.