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 0xd80562242ed36a73cc76cb3eda32cdd4bfa8d6196c741b1234d35de82813c1c6. 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/b138439f-9c6f-44dc-89b4-5263b62acfc7.json and https://artists.proofprofile.net/proofs/artist/b138439f-9c6f-44dc-89b4-5263b62acfc7.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 0x0505ec2f1050c891873be6a02f3b3c9e753d7b61f7f45c4836dbcc8e151d4326. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:40:24Z), 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/QZFZ72205674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f6c5abada3fd350f18cb86e81fcd3b5992608d7a1d8abbeb6f5a84b10280da. 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/QZFZ72205675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353d0b1fc0f00d068f5eb8fb055e9b8ede58d4c14689c7a4b8c571e6d206a46b. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:23:51Z), 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/QZFZ72205679.
Disco Nº 2 - La Leyenda Tropikal (Tributos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2ddcaa5cc3faaf69106c217f58552b9984d219e8eb8df38b33a09581a9a33f. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:44:03Z), 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/GBSMU6031321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25844b25426d34aa1ff5067d5d8f0b5db8a75477912aaf77dd54038e65c7d754. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBSMU6031322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3f3ec965e5d3294c6df9986d1806479c326672b02599a2b8f3ed2c2fcc0c7a. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:09:39Z), 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/GBSMU6031323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309f18654ed3f95553788c4911616d88555d0bd7955165f7a130e7b7d3df484d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/AEA0Q2031706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ef2a3584c43eee4e8e6df74b2bdc9607652de757c304414f101b8bfea29095. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:54:14Z), 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/AEA0Q2031709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969b6d5c8753df61ef040cc770abb846001e34f35c34faea7867e9cd2f182178. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:08:15Z), 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/GX8KD2436966.
Mix Tormenta:Demasiado te esperé / Sufrirás, llorarás / Cervecita Cerveza / Pobre Corazón / Me mata (Medley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58b26f3a1aba0ca2c5a3e8de5c52b3957559a3fa46b7dd057ed62f5ea71aa95. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/GX8KD2462976.