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 0xd2a81621f3ba5753580a9b622d8a4ba25af5747db337a71c296907fd0c15d3d1. 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/38a9e313-dfe3-47f9-a1cc-c4c60247c5cd.json and https://artists.proofprofile.net/proofs/artist/38a9e313-dfe3-47f9-a1cc-c4c60247c5cd.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 0xfff66ebb9ca89f09007fb2c4a1a9468e27970adba88760ed4d0ec8bf64c945bd. 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/MXF110201121.
Morena De Mi Corazon (Cancion Del Mariachi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9840cbb42218b29f7fc3cffc0f1ec1afc56a13567618dd5355cf2609ecf6a750. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/MXF110201122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124b7274c5f24331cf6506866224e170856a50ba83179b36612c79e3e1b15d9c. 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/MXF110201123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6954b1c441425c0ab19e5a86965d67c959d6e7e42c77b27e3202921729c26bfb. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/MXF110500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76c658dcf3a894c076c014f43e5cb9a2a339fbd9fbcce0d2a4d25d5b05de245. 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/MXUM70600526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd54c5c9cf7adff9f88332537fd064e71341488d617ca7bafa596436fb456968. 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/MXUM70600484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ba593da0f6934553854923b530705b476f18f38ef754debb0bd79b9a9278c2. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/USUTV2401746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfbf2a52537eb41bb53bbb823ba94ea19d974dd65134e8ec4c2b4f425b9860b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USUTV2401770.
Banda Estrellas De Sinaloa De German Lizarraga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa109eec622170cbbc7c8677de8b32f70ca3b2b637d0c920534f88c5c4be00984. 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/USUTV2301662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa109eec622170cbbc7c8677de8b32f70ca3b2b637d0c920534f88c5c4be00984. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUTV2301662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5134d937e1eff67f2be4e9aac7db8871f1dd21de6fe1c595051ba63ed0857e. 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/QZWDE2538000.