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 0x5de707eaabdb4f53a53305fc63ce7a99efa5f3d7720db3a10ad039ccc734e891. 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/719b9fd8-9cb5-4530-8ab5-0a1824a81b47.json and https://artists.proofprofile.net/proofs/artist/719b9fd8-9cb5-4530-8ab5-0a1824a81b47.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 0xb83fbfe89710353dffc4c177e5a12404d456a98fa6ed8fec56796ac1b0765c8f. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/GBLFP2158836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc70a0755bcf8ba243493b7ffbe22b4a3a72c867e478e824852f3a7a1c7e1a4. 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/GBLFP2186337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e63af501988e85da90d1105f1115f3d93250dc5b787eff1af39f4fccd5a43e9. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBLFP2186452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501f6b8e4d47633e36ca2c94bc8b0c55d780b5b2d24aabdf3533f6dff0b34185. 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/GBLFP2186447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415d674d4b76af74a553fde88e440980bce3b2ba101bd9b75f70dcb4a75db7e1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBLFP2186456.
Popurri de Charangas (El Cocullo/La Siringa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58382b757701f39c1d5e0b21ddbd317f1f916a866b098f56fde9caf69611d5eb. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GBLFP2186445.
Palabras de un Pádre a sus dos Muchachos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c7c1cb46697470c0df7bf73992c327d8c7efbcc4b701df7475713dd98c2d5f. 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/GBLFP2190449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2516d3746b34a11f3902816c86c43989ff7d0351256237e0c1082bfa8dab3d65. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:00:59Z), 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/GBLFP2190437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22f84210af15696cee903e070e6f5b9b4ad851d6952fcace9a96c8b0dfd37b0. 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/GBLFP2190443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1c1443d807d7676693ef6a7c7ef1d4c8c546b7ae5535a2840ef2fbf25496b9. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/GBLFP2190433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d845606b11cf2f98daea5fe610a56d24c289bc24b24d00bba0e2b9048bd0ff. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:07:08Z), 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/GX3Q92185030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65827a6f61f89d8f97b713b25bc09524dcdf7f739381b4052529206f61d90b4f. 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/GX3Q92185021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84115e10488b6094ef1a298476fa8621c721eb27a9a38ca18ee844e3751a70ad. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GX3Q92185023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39291ce3c4d9af83cfe8e1f24057ba385f2d9193512d793ff8add42f0d9d428d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:25:04Z), 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/GX3Q92183622.
Acapulco Tropical / La Yaquesita - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641004b58576257d0a3e5958e7bba605c896344ef4bd8c5f4b645bee3d47a905. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZNW72404171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81194113debf9eb59757b007e86068550ca2713bd04203c936791623cdec01ad. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GX3Q92327671.
Pinotepa Nacional - Princesa Encantadora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c48023eb91122d49c22d7833870bf0c5dadc5e4bae3ce9603949a265fdf871. 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/QZYFZ2448020.