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 0xef083527e932df8728aeabf62ed61d7b421d21b168e97ae067d8b9d0a5ddf18b. 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/bd513f7c-da71-48e4-bdec-71dd74bebdf6.json and https://artists.proofprofile.net/proofs/artist/bd513f7c-da71-48e4-bdec-71dd74bebdf6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Dueño de los Exitos en Su Maxima Expresion
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 0x2afe9b192a36b52763464457f862687dc33e94fe9c9b7ca17c1e9d476b85aa01. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/UYM121002055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1447922a40d23b58a6f40ced7d272dca087d8e4b1e2f5e7a48a2d8e27eb430ae. 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/UYM121002056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138177dd2e5fc1db09fc3047463fb86d9f33ea5efadaff50500350835208d272. 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/UYM121501826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254a11051d240356d230c4a1525b642b6a12bdd76ddb45181fb3f3d8b1bf3be6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UYM121501835.
Enganchados del Recuerdo: Ámame / Vete / Vagabundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906c8f0f7d92a16951e08b5773acbcbd430aa4c59213e2884832a64536981b1b. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:34:02Z), 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/UYM122200851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a8f01be15c3bb708235d73de23aa9add6daf3a6ae3cc24c8b5a4229e0ffd1e. 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/UYM123002294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ad6e1e73ed819a2b2f207c0a104c7c4c48fbbdeed82edceb1463817f82b8af. 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/UYM123001528.
Lucero Al Amanecer / Micaela / Por La Familia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc640a5309620721ffd23204e14af1ea4e40191c82fb14feb8f96ba0bf459849. 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/UYM123001529.
Inocente / A Fuego Lento / Plena Criolla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369a4c86d52d48893f599542ef80d377ec5c58225e03af0eb610292a017e6857. 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/UYM123001527.
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 0x30dcc7cbecc32a2cf49a8c1e2aaff6a28b1cb4fa11b75061483dd410604effdb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UYM122002390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d3654a487aa147b462cba44f0945a4b214b5c06d4f9ce72e80eb3ee6876d8a. 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/UYM122105347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf700bcdb857c6b7b2e8d3ee66326093ff666cbd7ae2bc08afcaa8e0b51c23783. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/UYS059900434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbda99904e0e175cad3da1438906e373d8702b454bf4d642a5c71221923a461. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/UYM122002383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa853f563af1db7cb153d22b021c76db43947b7732e14ebfe5e4d7acb0946c6ad. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/UYM121601306.