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 0x3ef41495d44b333532790c9a0adf78e330e284523b04a24012288a6659c02fbd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c367656-6dcb-4d3e-97a4-318c7ad21181.json and https://artists.proofprofile.net/proofs/artist/3c367656-6dcb-4d3e-97a4-318c7ad21181.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Los Hermanos Rivales Corridos y Canciones
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 0xa9dfce706092b9f865465c62b6ebfd132d12c2420a29a18bc86d1c9380c15b4b. 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/QMXDC1100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddb228bf485022728ba5222b9f0ee2db32a8966ad2fc2d7ba310fd3ec9d2119. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QMXDC1100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad66f266b5c6e6d0fce970846825c2b03fedb8b186a6e5fe3091ec98cbd72bf. 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/QMXDC1100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252adc65646b365f4d5e9b3db7166243f828784a3b92056ff45efbb6e13b5e0f. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QMXDC1100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693dab6dcb2991752a71dab393919abc0d917a5cd302fcd718c659a1fc7c26ae. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:02:54Z), 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/QMXDC1100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe173536584d55392e6a7cf647bd2386c83a9f935f96fad8c86b71bfa4b579237. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/QMXDC1100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd41e7d7929b6057d2f42cd44b704ed8999b9e2d755307ecd0686496e3316eca. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMXDC1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbbe8508f7c7c7fb28c743b2c2dddd8d9f4fb86e1481809c4a5b3fd064c73fc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QMXDC1100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138e8a4264bc818c7110b6d5b90e971a81ecbfab11dfcf80c36e0a43d8bec52c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMXDC1100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fef60972b04318092dce26d5a4fcfd78c2ea005ccc1b9af2bb5825c8d00619. 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/QMYQ51101775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cda7c7bc2a3e41033b804d1e006c6e8747cb72d0b5a2644c889d91003fdacdd. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FR6V82607946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f2e2c435cc4984d644c777a7198ec71cc2521fe54743ddc1363de4460ed703. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/FR6V82607948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b3f03b90f98e46c051af7b5640cd116c5e765f8ab221c1a820d02578c32374. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/FR6V82607949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3755974304fd158e0bbee58001195197aa697ded9abf05afb4e8f79a43ded121. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZSYP2171109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2356d0f188ced20ac08ba4f2b0fc5128654191740c7a12c7e9d60a6bab45a4c7. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZSYP2178744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ae064dde8a1a18eef0f9835f5a837f785dc1e10b43766fbde4fdd44d83787e. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:07:54Z), 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/QZDQH2363953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862a9c3b2b5cf378355bfa179f4ae44555f4755a9269982f463f9377c6e2d8fe. 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/QZDQH2363966.
Los Corridos de Hoy de la Tierra Caliente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1578094da61d61be2757bbcaa272cd697fe28fe836457c3a54c4d7fee05504e. 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/USHM81455364.