1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xdcce05e1815e6d1a3783e0d1b152e627e0833daa2c9106f69aa2245e1d01e60f. 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/7a59a29c-315a-4f69-93f8-7c755dea18e7.json and https://artists.proofprofile.net/proofs/artist/7a59a29c-315a-4f69-93f8-7c755dea18e7.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 → block OTSBitcoinBlock must exist at that height 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 0x436f8b9bc04e03da53548d866471bade335914f8acba6f02e5f557a4fdd52c9f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM22464234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa861aec94fd28b4005c4b01b61d592ea094cdcab83264e17c0bc4f4f553a6fdd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ESA011642122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dec68e10dfb4fa89b2e4555b1df48405e640f463e696a8c426693b8217ca43c. 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/ESA011642141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f68c1ec400a65efb93a147438f611472db6f06b01767b1f1ce96b330c86530c. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:44:09Z), 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/FR9H40900000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b1210db0163be111b4d6620f0cedcd2093c3f436b28b34e3cbaa97ca592329. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/FR9H40900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76e3f9a35d3952e8a78816502d523e0b9fcc8a35cc5bd3255c6164e3d92d168. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/FR9H49900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87185dbb7c5204d073a21c31c58a4fceea19f18abfc9e4a304d154c94755954. 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/FR9H49600080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70afa8c95d60473e7aa8b9ed9005b0d72c11480ebb4ba6f484cb416d2e4394db. 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/FR9H49300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbeda53154c34b5d8bc3ada565a273f82a0cae31781d462274cd33cf5df42385. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR9H49600070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53911d8e2777d5d1d670ff4578fe893befd85dace7b4f76a37134ef78b4f260. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR9H49300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06cab1cf1a6c669d0b9d556d64f6d818980a55086a54ca5d017541292417a5c. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/FR9H49100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0465d7d5448f82f4b82efecde0a70795dc4b985234f6af5923cab3689ae25de6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR9H49900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc054582d268046694aa9615976646faadb7c0964286e8fc0d89fe28a5deb992. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FR9H49100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23bbc7cfa349f23663d468a3a85e2435b3e744a07f4623fc38f7c9fe7e6734e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR9H49000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa05cb11c2461f80419ec92e5159a8fdd36b35c60b804dea75491c63e297b09. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FR9H41200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbaee0fe1e59f7552648befd50bd341db06478a6b73b295f465c4df3945b0ac. 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/FR9H41200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dc781fc2a62d87922957f380d85880cd2ea169cfec5ed73d4c03ea67e28507. 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/FR9H41300020.
Vas y Francky c'est bon (Tropik House Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f322a83cf6d79b9703d5439d1e31a518a27f891c85958e915e2addb3fe6aa4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR9H41800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914d4c19ffae8e6d289d929114ed814fd21ab866eabdaeb428f2f48fc2e26068. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR9H41800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe38a11f4abd428282bfc1708b29ad66ce45f0462eb89cd5feee17dae7d09d86. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR9H41800060.
Medley France Gall - Evidemment / Si maman si / Ma déclaration / Ella elle l'a / Babacar / Il jouait du piano debout
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ed6de2b35b0595b7c79c158ae9f3af7b32539b0d863bff6bc071415e3b3d52. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FR6P31200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e2497cfb502c482e4e011a9099a65ce4e9ab0fb631c1d0d6a07a8ec1a4163c. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FR3KN1400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4525f4d84978b734a12ae2663a9b5cceeaf02ace5088e9d2262b21c1e073f7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR3KN1400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6af499bc482190fe80df952e1bdd1cc5b6557cb94c81937296665910a8bcf9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR3KN1400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305936bb39cbcc7406892ef519daec204cc7647c44b3a3e15fdd5a90ac45d09b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR3KN1400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4e52e306361bd1e1bb45a8684447a4d60f94daf877e7ff867d05209d988cff. 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/FR3KN1400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2625043d6ef44236686340acbb0b2225d4613b654d99e48ae0c9f11de161578d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FR9H40900010.