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 0xe46c8407da9a9c121b0b9cd31d56125fb4153349af41d9ecc68e1179ad76ad48. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1727cbf-dfda-45bf-bebd-4f8406fd004a.json and https://artists.proofprofile.net/proofs/artist/a1727cbf-dfda-45bf-bebd-4f8406fd004a.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 0xa3353d23541c6e6df8ac0e9e291e31362a97db750e9da50e9801285e67a0e907. 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/USHM81711684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9204a0faa438d85dd8696d5eaabfbb84dfd2773416e1226c2341220f7af089e. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:11:15Z), 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/USHM81711686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460454716b76887f1186a38a1eb0086c84aa2f483444ca004699b45bad968f3f. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:27:18Z), 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/USHM81711688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108e990b6d2916c21d7ccef546af90a02a02f6cda21a57ae47e6c83cc43ff516. 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/USHM81711690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacea1bd33756d7aecdc8e343a37a1c1bf38a5e706d387ef590520088b9b6f4da. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM81711699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf4f0f3db9afc3a0dc5ae05585476ee016c5ca5dd00453f097696a625b80db8. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/USL4Q1961873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d633f4238a7c9607106ce6dfa160e4c8ca45d6256594a3544b5dba78959d0e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USL4Q1936323.
Duele No Tenerte Cerca (Disco en Estudio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82387cc701714c42b7189768fc2c75f00ef28e7e30a5f77cc2c2ebe97c2f8f0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USCGJ2263458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08d570876ae68b2aa32e46bdc71daa38a48f7a40426dace721d55747e8d3a15. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/USDY42498522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9da6b8449c112f325b66e74800e1e6392cbfe9c7177c2c7095e00a2361e508. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USDY42498528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c296a9502c9bde54fd182f4aa3127266992486bedc468650b1c43cbeb6a29b2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USDY42498529.
LOS DOS HERMANOS (corrido de cruzito y el 11)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93196c089dbfabd44b5c8fbb0129edb8c2ff95977fe5e6098177ca910832959b. 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/QZTB32547321.
LOS AVENTADOS CON TOLOLOCHE REQUINTOS SAXORES