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 0x926bbb9cdcd1f7b8336c2a4bdc1f88a90a61d1baff549edb98ef145da53b20e3. 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/c7216c88-ade8-4019-9dd2-d856db93d78b.json and https://artists.proofprofile.net/proofs/artist/c7216c88-ade8-4019-9dd2-d856db93d78b.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 0xa9eeac8c77020199946bf14f0da80868db7943f1bc6952cc05f003ee712756a7. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:05:04Z), 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/QZNJY2111614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611b541619bc47aac385cc355f1a45ef83a701d1db23cf07c8fec9dcdddf48fe. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZNJY2111616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ce9b0a4c844e20d53ca0591ed04427109090d530113d332e4ffbba3002ac1d. 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/QZNJY2111617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef377ff4001834bc0f6fb8a50e902c54e680de7527013d3c7eff8acb88970ca. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/QZNJW2114856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3af39dc0946caeaebdb134f2097c669d92cfd2879f28716f8bf77087e50ae6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJW2114861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15c55fc1087c57d54199f44ea937836602d1e93e322a020cc03ffbeda8564e9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNJW2114862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e93847381c706928209d6f1711b2f67b49701edec247b7b324616b031eafa2. 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/US7VG2202234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9440c9f9dc7ca7e93af96ad32f0c537d71adc4e4bd3d7b6c716af1ad2b9b23. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:30:05Z), 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/QZHZ32275111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a127448a6c3e372db79356ec6e4db29933a89c4b23c2186314ae705b0dd3f2e. 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/QZHZ32275057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6247ae8214b4fbee550fc2664c62e90d835ef5854aa49e338df3999804a42ed. 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/QZHZ42239549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54674b55889707e341a8bad45834ba4962468be8bf06e05537f0a427d50a7244. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZHZ42239550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9eed325fe7eb260cfdd0a8a312dfe0186f8cb57dbe98a6cfedb6d74247038e. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), 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/QZHZ42239551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0b4c99d598544f008cda4bd3dfb09863deb255161bb8fbe6b0d66e0ce38442. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZHZ42239548.
Vete Pajarillo / Vete Lejos Traicionera / Un Puño de Tierra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55330c9673076d5b7a7a1a8fb22b29887a5ea47433aff78accc811eb6f8237db. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:00:54Z), 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/QZHZ62297767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f3ca93edc9569f9e16b18064cc1ef329d7f64b0aa1c653cb316ea665b42a45. 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/QZW9M2200697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7573390d3223220510ff6588d35c5ee04b913c84f8dcd04fda6fa239b5d92437. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZW9M2200698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6f62360637500b7b884835adae34a0ded5049d468f6f27b2afcbcbb011d187. 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/QZW9M2200699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf99a262b7f76e5832ae59ded78c84a69f24c565e4a93c5cc092c026e27f2cc. 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/QZW9M2200700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9216755c4174716946a8667f1019cabaf6b3226e5d8e35667ffbe4f9f45c982b. 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/US7VG2390100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefffde232e2e9929fbc3c717f9e23cd91a8930e76145747c9bfa9cdd6df84a44. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZ5AB2308586.
Te Olvidare - Me Querras Cuando Me Marche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73aa3efa66d9a2750754c3a38abe853f9223c1a9231c71e00802d05cc2be811f. 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/QZGLS2384913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00337903bcdf456520d92229adfdbf7be3c0c3203c5c81eb3e8eaea6430b7cd7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZGLS2384914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ca77b9a1173e3672ef81516ffca38c70af36fa9891cb82889a60a870610166. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/UKXN22343978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7222d9b018f062d45cf7e2173bc3034d1aee9fb6cc97ac8d1681834d74e003b2. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZW9K2362880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1a7b7b442ae1f7cbeddbe49067985b37d602407ee58549350d997d38410b2d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZW9K2362881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3e1d49d0f463a5edc886ab12f1a4842475ff6c7905b7a3d9800f27bbe51b9c. 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/GBLFP2457026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708dbfefa098dc5a64bbde072326780a32aafe31199d68458bd51e40e7118499. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/QZ5AB2488046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a425410714c2a5ecab8fdb9b3291f6a07cf974f2cdd09eb1f4763e57b5f162. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/GX3Q92497593.
Vete Pajarillo sin ningun compasión donde estarás - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66145d799ce9d27968d403bc8c6cde7feb8fb5e47ce5cd5acb3d235346628836. 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/UKXN22404647.
Vete lejos traicionera ven a mi mentiras bonitas - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907105e7161cb501d11adc56bff9157781cb07553b2194053dee3d6f4e8ed418. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/UKXN22404648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae103e441b1680a6b6a4bc4fda4af6d0f037293d62d9794d11f257f7ba1b4eec. 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/UKXN22404649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdfecaabacf10e992309b0c9a3b7e9c89e69d0bfc6eecdb8354efa9628093a2d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNJW2471206.