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 0xc5edc916c2a948ae6763c54da89b421ad8f94af2ea47a7c072781ccde35dda0d. 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/a9ff980d-79f7-41c5-be92-9be2d0a8d756.json and https://artists.proofprofile.net/proofs/artist/a9ff980d-79f7-41c5-be92-9be2d0a8d756.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 0x6a7eb0798adda713e3b5eea5a20cdef7a63ffd8d38a6065ba9da73aa03315dc9. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/QMGR32262324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4993575816cec27528f061402fd04f0368a0482032d31b31d85760cd4b00ce. 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/QMGR32262289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ae0b22ec753b46282d0f223c284d2e2d44227598b2eb35f40e80bfe5eb1539. 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/QMGR32262409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de2082f062eea371ffd626c913b0628ef3d15cb6172c7178774d11230107cc3. 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/QMGR32261746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ab14f6b62f203207c834bfaea99ddde89a4b4fac4194f4226f3f08de90a1c9. 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/QMGR32261747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873f574877fcf8a1225c5dcf66d4101f86b591cb2067dc1b6e558989b4569ba2. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:40:25Z), 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/QMGR32261571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd39f5becf2f5d8221c43734d4c6b68d1f803f11c61669c3bc34bbebd92a565. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QMGR32262338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4507a3271c9ec9253a8732ba54e9131db30f5db2c287daa736c601480795419. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMGR32261770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecca83ed608cf6593a9753dd32d4b91a255ef61ad32a2158d460933a0b592a20. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QMGR32262400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091c156bc9fa2bd77cd722c366e32ce7a0a643d7b56c89f8f7e96cd476b09bfb. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:38:46Z), 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/QMGR32262308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ce2009acc906253e9cbd97e63cec899df8489db0b4ede276a4afaf83eebd79. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:24:33Z), 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/QMGR32262315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83572daee7c4c0a9d3192081eb6a0de3fbc063f3fdda939e51d9a8cf42dcd24a. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QMGR32262317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f68c217c525c92b16e6c0a6631bdf8952576aa3ec0315f3818e343f1b04c58f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMGR32262325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9905dfccf9b00584470ce2b10a9093fd8e3682e892b51463083f30ef5189abd4. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QMGR32262326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791300c30f8c6e096fb5e7dcebb0db643324f5bff4a7300d93159d55ef8c844d. 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/QMGR32248858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a4d905dc5377b9f5496d9e16124015ef733997e4d8fe3af79f4316ad8d6db0. 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/QZQAY2153795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102ab0cf18c92720c19ba789a4f4b1d438f9f8f506632e6155bd9c038f19b63b. 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/QZQAY2140943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77c15581dfdc41dfe595ddf1189b222c5e0c68420f44206a6c6c7a39b929053. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTLA2288695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edf69d6814c45a5b0c3e856ef59a1e1adf1e5f459c67456b4f2def14eadd4cf. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZQAY2284253.
Te Olvidare / Chiquita Hermosa / Quisiera Saber / Te Amo (Tour Argentina Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85eaf8aafa2a1543a69d9d1131ced565919b279730ab6ecc36692d5ce28ce8f. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:26:15Z), 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/QZQAY2242661.
Que Fácil Me Has Olvidado / Ya No Se Que Hacer / Putucun (Tour Argentina Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0de13f64d71b7e1c72b0ce70aa23b3576a59ce1d809cf8debb90b7e642133eb. 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/QZQAY2276503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cc2bbb2d3e99d016949839de953fd1ad2cf6e84286e839ccc232b6b57dda76. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZQAY2246571.
Por Tus Engaños / Vete y No Vuelvas (Tour Argentina Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa6e3dc0d63ce01e8faa72873e2bfb30d31ae284795df74af440f72199f0205. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZQAY2290833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b56de4bb888e2bd842052d75b9682df695501ea9589695e3f0bba59647fc46. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZSYP2259853.
Ari Viday / Cholita Coqueta / Uray mallu chulla chaulla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc22d70d3ff9736eb29c04058da1f328e4f24d2978cbab2bbf25e337ba6b08f9. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZS7J2450455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2078c1c8ab0a891a6d33dc16800504bab9ec4b4a76d52fbbf50dec040839dfc9. 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/QZSYP2567759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a3349bedad69151dccc5519308427a457c7599333f2697829aaa64338778c7. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZTLA2530459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea8d1913dbdc9ae686d2241f8e2096da51aec00d10e5971c545896be541bc53. 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/QZTL92508578.