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 0xa32daa00184d91a962d0dc4446e0e2ff267988ac3afae44ea0c07bae248a5c53. 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/530f8fa5-9d20-4dcb-9406-4e8755bf6385.json and https://artists.proofprofile.net/proofs/artist/530f8fa5-9d20-4dcb-9406-4e8755bf6385.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 0x6dfec4625c480db50adaf644277fed58caad7bdf37f0e606b805971db080a072. 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/QM6DC1880726.
Sangre De Maniaco (Instintos De Supervivencia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e967d271901e800d723ec858776ead8570311171ca756dd5d195712f3ece5d. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QM6DC1904929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac57f24d2ceb2aa85b463b0dd5ec08ced5f83841f4cdfa0e0919617263c2e8ea. 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/QM6DC2093895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d24054e60750528980dee74ddb13a6621c1bb677b28d3794a2cc81456db8187. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:08:02Z), 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/QZNFJ2119071.
Se Acelero La Plebada / Ya Empezo La Balacera (Popurri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf186f87f5033945e28f88e4357f7ed2f741b13744eac2bb68e7ca92c7fe94938. 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/QZNFJ2202100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17b76ae88e001b71049e0623783b042d94e2e28db7d35eb87c60a2fdd3b5c25. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZNFJ2203179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc225011ef7fabc49d3335ed552a44d34f223325e780a162845e89ff9ca26a474. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZNFJ2208763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6620c6b9c0fb13d4873dcff783a571d71a525fc348c9133ed60523949589e9c3. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:14:32Z), 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/QZNFJ2209165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32d9602a5e8d8748791c18bcca0397560c0603f23b8dd9119a481b5031f8f05. 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/QZNFJ2209868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1009e90b3309afea67116400d888be748546031137311b369083a9d4d56fb55a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:27:40Z), 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/QZNFJ2214467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecff7c46c3a934d3959b9d20e9893ef4cf88998cd9f0889737bad02375b643e. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:55:52Z), 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/QZNFJ2303954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817576f3c96c4d335009e3fe316ecac84706de97dd540b16485e03aaf51d540a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNFJ2406249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee755665d7a02f778f8dd4b9f7562bdb28c82e49ed8dd20bbb6c22a93c71531. 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/QZNFJ2503809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cdadcfa58972e836cb17eb78bfd12116577c28bec7ffb997cefcb983a951ad. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:03:43Z), 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/QZNFJ2506049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51d4f8a7897abde8484b9a54aa22c0fb1701204c638ec567c53b61dd7aaf10e. 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/QZ9QQ2400601.