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 0xddb0e1d57e0e3660e7c95657e385106367cea8fc9eae208864166ccab24b82bf. 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/e2d13011-c8f4-40f4-8612-655094609d42.json and https://artists.proofprofile.net/proofs/artist/e2d13011-c8f4-40f4-8612-655094609d42.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 0x80852f588315bee43f638860cb948e716f339b992fc653105b11859e51dbdb9a. 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/QZGLM2266185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6af5f3f68e31027ac03f68085437623b7f2e1cff8988b7f6b539125d2544d38. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FR2X41691591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc0212d78f767bb6841fde9edbaa81d43c16099450f48e8b146599d0067634c. 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/COA921600910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc1a921fc87f832d0ee1c359be5b74f26ecbd384f7ede5549ba1b22146ea492. 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/COA921704001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580d495fd7ac7212470a78cd9abf9c274e01731e33cb2b79664793c15bbc8e15. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/COA921704012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66579d105275cbd78340da9ee409042edddea14688ebba398a59da09095ec938. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/PEBQ91895218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57f7f88aa319a9485c9de43399244825ab1bd675e357ff6ddfc6e780d36c160. 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/PEBQ91895219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8d3c30676bb4dedc6a68770e28d31a0b39fa8d320aaf67f75e5d2a729d62c1. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:39:13Z), 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/QM7281990730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31fe510d5d4784a33054949eab4eb0294c9a7b58c3fe643ff13ddccdf70b919. 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/QM6N22000806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e88244cb6cf933d0ff6ea972deaddc3ba22cbb1649b9059ced95f01fc6b0b0. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QM6N22063451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9619d30891e9c559dc6ce70a4e642626fbcc5c1156c19d0961172927c1d7c87. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM6P42044336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efa098814533416fae8695243a8259cde644752714a37188b5c1cb6b5b5c96c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6MZ1980772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf048b5a10f1226c9dd9e8c6235480c230f53b65c1f193f02cde160b24e9cc2af. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM6P42044337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866452c7543dd2f700d8048231b34bcfd08cea1fa9ea0242df98bf13ce94275d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM4TW2095463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a195b6001ae226d26f78e09ca80fed5819ce53e939c65ad0966e34489696d3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6P42044341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab009f4b37921ae08b91b6d1868bbb8d015bf49d9ba6abed2422e61ded438058. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM6P42044338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87644ec52e6809980ac7c944ee741ce438bf4a37dd834eab4ee54c624b9364b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6P42044339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21022f8abc6be5e6a42fa2bf0e2e6037d375663959eba1c5c1f469e55aa25b2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6N22075437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe763743e94f3b6df0f6c6b1cb44c5cebe7cc4197f024e76a63ee46dfacb12d15. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:34:40Z), 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/QMFME2093378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9133a0f3f5159e42d4fde5e9f0d37e15accec4765dd03cb15d21f7fb4ce55c76. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QM4TW2121894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24bdff8781d3cb3c28396294df51cd11b4643a673e25a45fd12460ecd10e27b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZGLM2187620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08d31f9d58305677d953ec42c2ff3c02fd20de95fd1e7c75561cd310cde3bfd. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZGLM2187619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43d59d33d83266f111353c2ddb48613c8ecb77d0df3b8b6a1bd78509733674c. 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/QZMZ92100138.
777: A Quemarropa (Track By Track Commentary)
777: República Independiente del F*cking Goce
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097debd63309a66b19d899b77cdfdb2114cc4f6792112b9637f4e6fdfe3f84b2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZNJX2148874.
777 / En Vivo / Palacio de los Deportes de Bogotá, Diciembre 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b75a77b47b91a2a3a5dddca603143727cb6abacec5dcc9550ca0b3c73c137fa. 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/QZW9M2233135.
Fellarmónico / En Vivo / Teatro Metropolitano de Medellín, Noviembre 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e0d1138a8b1c662df6abaa8ae01c1b0c125e7140c44660da33fa9a3ff501fd. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZ5AB2394614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf728319ac6f635e5fe05ce7e31911fdd30068d6d2900c3091904e059bf061513. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZ5AB2394615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabc59b34c9f4893d1f2dad6b63f3bcf13ad5fed091c6f4dd837abcb4826336d. 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/QZ5AB2394616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6921c93778c866cbf78d44a8e693caaf74ddc62d2be273d7e6ceeb3b91fc230. 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/QZ5AB2394617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe217e216a193bc807b9f3ac0f1d6d5f1b332836643076d5b7d62e8586d1467a. 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/QZ5AB2394618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c2718ff027071df56d03c05714766ae6c3ca02532706c616a80ea4d86ea528. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZ5AB2394619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa560b20800eebb503f03dd8ed68fd550f7201ff40740f65e8030895bc9b1c67b. 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/QZ5AB2394620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a7963f8fbb1060f8e094ab1979ca2d35c472f25de08b781f660ff7d5f65eff. 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/QZ5AB2394621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18db089e8668adcba9155acb410de7df9d1399f0486151d80fe8c2abb598d791. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZ5AB2394622.
Manual de Instrucciones para Conducir de Noche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a7850553dd9a1209e4bb98b7c8371bb733466be50d812b1d7675292c7b3320. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZ5AB2394623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bbeee419d58a8483977ea1c48c2cbdab79b1a94851dd9293064303616b739b. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZ5AB2394624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065e0f270f5ee033436190ddceb449f8ae7a2ae6f448d91eb789054ae181586f. 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/QZ5AB2394625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4f30c35e1f36f1e255a129e3b15b667bee584f29c57f9db85cd21d1792059b. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZ5AB2394626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03974c43aca5045084331e4286b61b8893d581d60859dd90393b270fdd08011c. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZ5AB2394627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64a5de4f93854575733810ef081efe9782af7097189d7e646f8ae3030b0ba7f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES71G2150470.