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 0x31bc9eeb2b3a2fca3e2cfe1418fcff720b9d4f2eae79d16edd45fc60404eb09d. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8fd0944c-671f-472e-a0a2-de52a6bd9d7c.json and https://artists.proofprofile.net/proofs/artist/8fd0944c-671f-472e-a0a2-de52a6bd9d7c.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 0x0ecc8dec8c6d5d50326584c64032cd14f21075da225a2ee7e8073370a55c1869. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMER2496438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40e6995bde500bf58c110781fc77a0a5d511972d0b0c7a3ed8d8f2fc8ffa097. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZMER2496439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781bd27a76cb5842011c9a41ed8b47337de4e1b0094de06c6a0fca3e10195c32. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZMER2496435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f07aa5581d4b4eaede348ad54ca9c7794f329976f7c4dba5ecd6d43f8bfd17e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZMER2496436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f397684db8c3ad2b1c1253f9472e38792c908a7480403765d06df135d271b20. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZHN32470282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35d4dcfbc3d090dc0c9034c5f52fe27204196e913051eef49b8abd3f3e71e6d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZMER2496437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3338076ce4ebce1345ab767fb9a2d693350681a070187e20d7d0b6074a58e66b. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QZMER2496440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338cf6486a8d80a0c3f533f52a19992f9288d6bb31ad6292ad90f97d1b4eec56. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZMER2496441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc1a35c34efef8f6d65801388f68650e3f92a62cad3837ed1f5f74e69d34d44. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZMER2496442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc176e98cb909fa67dcf52c18590cb598bd74b8136af106a532726205724a53cb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZES52442566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60952e595db2cfc26956fc878b0dcd82ed30d5a726956524548440b9fa85d035. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZMER2496443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364b0cfa089fbdadfecd99040d4b3cbb364f476151b75102669e7498262e0cc0. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZK6N2484659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568c16c4e5732c650931541cf32ebb6d44e367b1bfa73ac199893b4cd0af9ca7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHA441500095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c26c845a5b77f0833751127b75904d3ceefe96a7a12ac728ba5220b8bf8ac4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CHA441500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c0059cd21f27b79c813915122749b571fb750b24315a26dadd0a8c3857ed71. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/CHA441500093.
METRONOME POLE DANCE TWIST AMAZONE (Bande originale du film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ee4f511cd7ae1ec2d6755661b0804c9478e68c64bf867ae01c376c596a358c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CHA442000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dcaa873e0711177f5f80d5b72d1bc3a0e882aa95476d4f1fd99a7981dfb3b9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CHA442000303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875969e1121c8fd53221d0bc4f0ace0adfa26ad7a9be6345a3168293fbadbe9f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CHA442000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8729efbcb8aa0b02bb0c86ff24588017c543950fa51008e3f25b43062fa450eb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHA441900217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bac3ba100d2bd5fb401d3200f5090574a10f5541510f316b3296ef208142ef. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHA441900218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc057a6c8d8539125aa6dd00e310294ca444a7aa5cc80047794edc3cebd1c8f7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CHA441900219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe018fac3899eeae1238213264e604145bc675ff780797d44cd62f86b10cee5b2. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:54:43Z), 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/CHA441500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cd0eabddd6031722c248b3899d5de36dac1b0330ca54fd4252f773e602da91. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/CHA441500096.