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 0xc2d4df8508b97b611929c3796c2b4ebee57387f691e42bad67dd7466b77732ff. 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/09949927-9b39-48a1-8359-25a9995a2cb7.json and https://artists.proofprofile.net/proofs/artist/09949927-9b39-48a1-8359-25a9995a2cb7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jorge Ariza y Su Famoso Requinto (Instrumental)
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 0xec27b21156dcbf9279cdffda557592daf1c2056ad2ed842db99c9eece507f6ca. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHZ41961687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64aebaa3bcef1ed9a5683a7dbcdd28b465b7a7cd3764e4aa0218fd0ac9a1d5c8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZHZ41961688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a6b1bf05a97e4b8a48ea41c579225c245b7903347e081cb333999118b6a8f7. 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/QZHZ41961689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e50c0e35e8a63cdbd3067d2eecb51da934401e208906be1ba220945bb857fc3. 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/QZHZ41961691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535d8cc38846d570d80d2e1ea99fce03a389b74bb1f8d2f30d7ebfc39fbbf293. 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/QZHZ41961694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e08671e34de4b82a96b6f97fba5d76e3f5c3bfb7cb153bf7af1af63849aa606. 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/QZHZ41961698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf0a55f901f3edba2b90ca77d86f7f1eecd19fe435305ca316fbb51db5ff9b5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZHZ41961699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4316b7b2073f72919618796bb5183fa5249f62dd9695c5de5ac09c35ec3950e. 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/QZHZ41961705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e3b7d682c86042a3316f3a632961d72f7bfff9d6bf0446b4c11262960b14c8. 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/QM7281581464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7357d98415f4c5cbd8c0434780601bc67bbb6536864dd51082ab0c0a78e95f3d. 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/QM7281581466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ddee1d16d6bffc0e71028e1e8a8da6506f78c03e4e396a0b5e778e181600fe. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM7281581467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38bd8dad312654b2020586db94f70b567a9dd30dda02c3821e106f055e6504b. 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/QM7281581468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016c776206ad6d30460c456b71616f8d19da6335a8436c2d2bdef917bb00e0f2. 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/QM7281581470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cc7f1d429c74693808a814d47af0ab6546df948df172693f2aeba5844d990f. 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/QM7281581471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65753fbbae2d6cd4fad6fb00e06fbc8dede9ba77162a1d81fdd518ceb4821c96. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QM7281581472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786e4e4a75508c3b9fbfa3007fc9b6489a9a57ac9d02e1576f327cd5a2f7e957. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:21:28Z), 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/QM7281581474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf853cf91579a8627d5504965ba6797133fb91f5f3df8ff05b2feabd9f020a090. 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/QM7281581476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4e6dd735c1511cf7bebc5f55441d87cec491fa8f21d3da400a84f452dc5e8b. 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/QM7281581482.
20 Éxitos Instrumentales / El Requinto Maestro de Jorge Ariza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13bc72b30ebdf92a16fdec6b59946555b033e663c9b655f910a876ab6c59fa5. 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/COF013900144.