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 0x954811f5f69a90deee3e1c55bd3718716cc32b6ca9f8a7a69bbb86f871a10fb2. 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/b240d325-f50b-4e60-96f1-30885dfda311.json and https://artists.proofprofile.net/proofs/artist/b240d325-f50b-4e60-96f1-30885dfda311.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 0x7fd3db46839c3808b1253708753f3996192d69eb24b64b79feb4654a44590a5a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRP9U1000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f8253ac493ae7cda85564824e213f4e339d81c8483ff19eae43ee236e4572d. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FRP9U1000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a8aaf7bf4d1fd215e5c76c448761a7636218be4cab8fc43307d9efaf617492. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRP9U1000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688512d4742e5c7a74720bacad27fb16a90114ece1f0e17da4b2450feaf103a1. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:08:45Z), 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/FRP9U1000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94da8a08b7023df110f4e8eaa1a1613cece5c769b206cd18e92f6838f1a46f28. 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/FRP9U1000120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a28564d1220743cfccb9bfeed032b808ceb085fa4aed0d6641325eabfdb3d2. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FRP9U1000700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a51ba6e9b52e949aa023d9eeefcf400de23bd7fd9a571aaf82ad1217475fb56. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/FRP9U1000630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a28564d1220743cfccb9bfeed032b808ceb085fa4aed0d6641325eabfdb3d2. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/FRP9U1000700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288e49f2731a7e97781ffa47a87e74fbc04356fb65abd16fa08854d0fbfa198a. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FRP9U1000790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabc0a34905bbd602c2038131cb34801541495123b3782f5fd2e7c3e50c46b13. 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/FR60Z1500340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3f7077ef00ab034b77c26bb7934d4508b004cdd25f6eea56a33201adfdd02b. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:52:52Z), 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/FR60Z1500350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441b93b8eefbe2e6e11e8c29ff861c1f57bcecdef285857794a311d6388503c0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR60Z1500380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdaee9c6f8afec1985cc9db5469469e37f65ecad05d1a7ed47a49b51c436da8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR60Z1500390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a96f04023a658114de540a04d456a8703a0420f9bf66f096f9526931cc6aeb. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FR60Z1500410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b18fa5d93952acf3dff2ad41fe12bbab0de391f7ec93620b4b5b951986b855. 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/FR60Z1500430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79527fbdae0d8877aa908022b474b12bdbf4a7921bc8d42d72005cbb275f187. 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/FRP9U1000950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5fe1dbd34d21a0bb7319dff1aba3c7c02132bd8a5f8de0344dc2218dd7f75a. 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/FRP9U1000870.
Framix chante Hugues Aufray, Henri Salvador...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785504c453d884148143232bcb0a9d2e4c94f6534d5253b242e1a2a6ce28dc2e. 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/FRP9U1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785504c453d884148143232bcb0a9d2e4c94f6534d5253b242e1a2a6ce28dc2e. 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/FRP9U1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fd51b55aa122d82401fa6b90fef3276fd31a748ecc915fd80c321f67b41ef3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRP9U2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce55a7152900a1a6ec2831b8793a1cb9b1f0e74c39daf94fd1853d1fcfe3291e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRP9U2100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0c4358d91a31695a746081449fc7fc8374447b705a7ec566a1e23c0a4b8436. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRP9U1000020.