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 0x9fe8a9397bc134aaec8d55f3b674692f4431fb2c95a4e067d6c2093e807a56c9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/888a9031-9064-4035-9b02-5eacb37818ef.json and https://artists.proofprofile.net/proofs/artist/888a9031-9064-4035-9b02-5eacb37818ef.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 0x523e69e21baca208d35d9646a2136156848c7d99b7731304d6a65eea4972c556. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ART401200267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6792edb3bcd6d98d78a6464b6cadd80048f5df6e67de01c8c540e74abf1138de. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:09:12Z), 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/ART401600116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6ff8245c6bd17bd5052e0087556881f0abeaca75cbe3a24448dd48d2537848. 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/ART401600117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea1f73035d82e9f98262dde745bf9bec5f4d81813b18d1849507440a9b4e9ee. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/ART401301027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4f5ae66f7ffc24cf2ed95be6221734a5fd52a6a16206a9d1da94c89030315f. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/ART401301028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3040dfafa656075e7dc7fcd1a69c11fe03e7c09c971d8f4d6442bc30448775e6. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:21:50Z), 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/ART401301029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02595823169e489ffc7d855f648898cf79aeb6a17647a7986f90104c9be51097. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ART401301030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045105ad330294871c272eaad856c04769aec623ffb835e814efa65f4286082b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ART401301032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6ead38f033cfa547543e644c69ea37c6e50e22ffdbd114356f84871776863b. 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/ART401000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054cf166f1530be63915fcaa4bbf686c50e5f0cdde7745bf262ddf64fb24df6c. 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/ART401000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf3a4d60978e68f44c4c6bf423b43892557e9e708998653f87d8c590d3a9548. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:23:47Z), 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/ART401400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b2644972257f3f846f5cec4c227e30fa88006ea906f015d454f7801eae7e06. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/ART401400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c12a2411c1a91e8e45cee571fcc756fdfa9abdbb76bc831b3ee23c23e86fad7. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/ART401400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd0ad322339f1df3c7184889ef2611bafef92688b5035168c1e30e20b417d0c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ART401400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a1530fc3908fb9066ab34e503c86aad6b1cde9babfa16b08f51b7322657b40. 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/ART401400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c162ffd1bbf6d5e7d3d87a19c0a06aeffa3a52a5708fda2eb497ff2aa35f29. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ART401400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937ecb07d9fd63ce8250605dccff5cb7b260251a69329a5cfc789b866aa68fc0. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ART401301047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d88ebce70f4eb95e01cb4fbb31b232e3428c302043cd9a7851b38e936bef6af. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/ART401301056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0396dcecfe74faa4a4f015b9646a66547ff50909d66978dacf0c97ce9aa122b4. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/ART401301036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee15f2a970a1c04f5c0f017c939e2217fcce858024ce27904302efae8073830. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:30:10Z), 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/ART401301038.
Entre Dos Ríos (ADN Entrerriano) (En Vivo)
Los del Gualeyan en Galeria 624 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291ade46a55996a62ea4d57d8ac4d996e605e3683cf002efdc478add0df35305. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARHXW2200489.