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 0xdaa38d5b47e80ab2b086cf0619ee5d3cc2bb8d052aa102756543cb05b2b1a3df. 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/dcb3b522-4365-4dd7-b1f8-ae04264c435b.json and https://artists.proofprofile.net/proofs/artist/dcb3b522-4365-4dd7-b1f8-ae04264c435b.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 0x3d470160986b97ebb3a0023174943972d29ca40d1a1dc211d103ba0909c89618. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZMER2069238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c91dfa4aca927ea8f30417b4e102163fec6257b7369478b33f1afee83b156d. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/QZMER2069240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cf4ac024e5be0c59d336b365c600b4835e092b8316804aefa1aa883487441e. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZMER2069241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2ec576f18f12dab1a85be89491d1a3272a93e9dd8bf7da78dad801687eb41d. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZMER2069245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9ca66060865dae94b4ab02bf106db93b13074d326f960d29e2ac1c1ff03449. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZNWR2084811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd591c966efcbdda900388c6b4fb278801d5f21c7b8b54b2f9223f82b8afc5970. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZNWR2084817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabde4e1e373c62c932811430782f62bab9287a0b31a09267c10be4db0ec6d5a0. 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/QZNWR2084818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfb74f91641992c27bc2e239376bd9d8cb742a53c6ab0559801d8c2dad1a13c. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:24:58Z), 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/QZNWR2084819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b0ff8220cd4e184dd944c505a1e93b26424642a3f16e11b84eb3962736e62e. 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/QZHN82153021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75b1f8f643935481b1b8c72e183e8dc40d8d31013c988edaffc1add174430ed. 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/QZHN82153023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ca27ba729b15d73d3ee80704755b4fc5d2177127d76e9fa8a8b317bdf90e43. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZHN82153027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc34588f05bcb642f0a59f052a7abd3d60b5be1b8eb8023870b76757fc9be5d. 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/QZNWS2041572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac12cedc2e270e9112517664374f872d873eb87a0651f63770b2e97f11caf12. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZNWS2041573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9749bc2c572e9d9c4ca680302088cb83510bdbb8e338a606d2161ed146df9b. 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/QZNWS2041579.
Ministerio Eliab (En Vivo en Lima) [En vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc057e671ed094cae3a04688907fb458836840fe11d59b1bf0520b28b611fe5. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZK6M2138048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b9776cd53a9afe7a32f51d34c4403e292307feaf0c4ae4145e4d77a0259d00. 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/QZK6M2138049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1a012fa5317523cfd3453a622f469a287c9ed540bd604a1a80807659d699ca. 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/QZK6M2138053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe82c6546858577f9d862cd1fb8a7dc6bcd65ed05accd6bc187c94fd063e8f3. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:50:06Z), 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/QZDA52272444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f763078e065f17eedb784d10d2eb1dade23ec9e8e3150a4a7ffa135e99aef8f. 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/QZDA52272445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d655c89f1aad22453eb06ed7dfdfe1efe575c3d4a0326b97ffefa2f09bd31a4. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZDA52272447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350b4d9dc2743fadc1a77385ad2454c117541e272515ecd11e0fedb93709a28f. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZDA52272448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9f79fcb7586ac403a97d3ecda193f66925e4ec9aee9350064031a57333f27b. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZDA52272449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a74c80221f355225d314d14e9dd6e42bb3e22659a87e588463bcfc268bffdd4. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZDA52272453.
Por las Mañanas - en vivo III Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf441799d248be9378e907464408c4519b29fbedfcc2830c3bbb157508d342ae7. 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/QZNWV2298094.
Lágrimas de un Guerrero - en vivo III Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4162332fbfc9b5032b5fabc33ca40c90c261786a7006f7b5caed2ebb598c6f2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:31:44Z), 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/QZNWV2298095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7735110a1b16b61d31ce787efc9d58774e1dbb6d7719c87aba23f4824d1ddd. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:48:38Z), 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/QZNWV2298096.
Gratitud de un Hijo - en vivo III Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07369e68e5d68135f76a8e90d178c6c4a041dadca93f9a28c8dd317ec7de3a14. 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/QZNWV2298098.
Si Cristo vive en mi - en vivo III Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e50721dadee73dbcab694569d852e9abbd6f122a4fb718b224a447e55af3b6d. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:45:33Z), 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/QZNWV2298100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721cc91a5e9d5a2bf2c93f59ad855ca88cb382714d4af726c76439b17df21cc1. 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/QZNWV2298104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9cb14257502e116b0baeb305e7449a711a583f48b4ce89c9ebef1ae2d01a9f. 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/QZNWV2298105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de8cf94524a0885ba07a985a255126e34ac4e57a1ec7648d55694ca8dedf9b5. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZHN92585916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afdac61894c68cd684ec6840a7502188b2404304aa28848bbea41591b0762bb. 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/QZK6P2589670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855a87d66a07d18a2952fecc20489162984aba64ed48560c468e22f50ba326fc. 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/QZMEM2541882.