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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a86b7c44644d599eaba587058337104afe9f9ea819b6a423e72d3c3e5dcda75. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1986482a-b9b0-4bfc-bb8b-49c884c788ee.json and https://artists.proofprofile.net/proofs/artist/1986482a-b9b0-4bfc-bb8b-49c884c788ee.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8066918cf384b5933769625e88584ae8335faf941b83c4e537091ab05f4f934. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/DEZ650704699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fba473a13339d0f7232ebeb7c9ae7b93afa3bbf182cfd8d9b889bbb24077f63. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/DEZ650704702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8abdf352c9665fabd768df97d0ece6124daedb6c8ee13bb2954ee651019a4a0. 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/DEZ650704705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10b4d06ec5971bcd73ee2e937a534780efd1eee9a6c5212b40af18b272de5bb. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/DEZ650704711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d9066451fd7454800d9f65c0ff2a30cbca7617d9a9dc82b23f6a7cba2a8f73. 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/GB3U21200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b822cb90fda23de5778e262947a53a3510168e318e0f9b4731a8d2a8c8374dd. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/GB3U21200280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07e0fe49bf4e5fc45b9d9b34d6e3b65b7531b3455a371890c87a93d44bcdb02. 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/FR0U91601662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba191a21b6e0f6a74cc1fab389cbf9fc9dce2818e20d85bb930c51819f5c010. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR0U91601671.
Rise Di Matic (Gun Shot Nah Gunshot Riddim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6087fed0a41a095997b5daf895ef29b7f831fbf114e707845be1282f87ef9a. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/FR0Z50115266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7937a333c803ddfa28c3e865da58c2e17b76c1c541582375e8a04b3024db1c6. 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/QZMEN2501491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c761829c8bb6061dc19d7b1de57885737d6a5024fdee57b91b877d7b12402a. 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/GBXWN0800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae61191076288266a82df844ded63d12b3ce9660f63ec46f682cfad90512820. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USA560919911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df87423669ef2ec81103a64017100a7a46bb059d69ae772bbf646377075c742. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DELH10901178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3933a5e8c9cd59da43937b0b7b24f05c40c4023823af2bd6d5a7f9a4b790aa. 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/FR2R02200280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3933a5e8c9cd59da43937b0b7b24f05c40c4023823af2bd6d5a7f9a4b790aa. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR2R02200280.
Festival International Nuits d'Afrique 38ème Édition - Compilation 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3933a5e8c9cd59da43937b0b7b24f05c40c4023823af2bd6d5a7f9a4b790aa. 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/FR2R02200280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3270ecdd3511ac0dfcb66d694a300982f57aa7679b6dab14c87b3233725ecfa. 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/TCABF1278755.