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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3548afd9c4488c83dfca76fe5ade34d8c0b86d2d2074df7f05cfaf7ef7296943. 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/b6b72b1a-d756-4fa3-a15f-d8de6ff7173e.json and https://artists.proofprofile.net/proofs/artist/b6b72b1a-d756-4fa3-a15f-d8de6ff7173e.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1b68bc5f3ae1c12f6906b713b2091732f74c5cff3e2416d548f0250054bb10. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZHN52295517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77f8894b95506f74ffbaad7c4a1c1ff87bebe5df5412142d768cdbb683394b4. 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/QZNWX2288320.
F̷̦̻̥̺̹̩̗͖̣̤̲͓̭̠̽Ǘ̸̫̝͍̬̱̘̝̫̳̓̈́̚͝Ŗ̸̰͖̞̮̝͇̱͇̱̦͍͊͛̅̎̈́͒́̿͋͘̚͘͠I̶̹͖͔̺̯̫̜̬̬̟̹̒̒̃̽͐̐̊̔͆̆͗͐̽ͅO̷̞͖͈͂͋̅̕͘Ụ̷̍̈̊͒̄̋̓͘͝S̶̢̩͔͎͙̀̈́̄̎̏̏͜ (SILXNT, KYÖ$TIMANE, MO!GU$ & NISTIMANE Remix Unreasonably Loud Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00067ed58090997243e299b768776562034e6e80a9ecad9b70f6ee5c1268844b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:00:51Z), 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/QZTAT2285144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965934b8dcc7273b6771e9e697cf30fc3556f2e58ef8fe4dcaaadcb3877081fb. 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/QZFYZ2358725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f6bf09e2461d97c56480fd24ae7eb773fab3e9417768d052699733793cc2f3. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZFYZ2358726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49bb6effe340332012f779312fdcb79cc9bd9eb260dac5e414688a1d2c8616f. 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/QZFYZ2358727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cf4a43ea2f6f510dd96037baeab3cbde0dc2c25b313a3236bedb8b5a6cfac6. 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/QZFYZ2358729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594ea53240bb485258eb7a077b46ecf05b683650ecaa57c5c886ba7ee81b7c9c. 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/QZFZ62308731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54f16c25181357d6ed0f86bd8e216861f9cef4cf5f8f076ffe03cb33d221b51. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZDA42354938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e7b4ce5a917b798e89e190f45bb02a5e27a6d75ff7c6590b061c35c4b47776. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZFZ62395834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6893a18977dfa86f3f21dd8ed96ab7b7e8d20842729214874e44e197862123d3. 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/QZDA72390345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c55c44b6b0901b7604d255ee7ff24baadac213ddd69b4f1d6478b4adbd4f4fb. 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/QZES62309762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b2d900e5e8e68416f6a59254f1f34dc1694155e8e19a86f21de1e297cc62b8. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZES62309763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5817305db36a5add2648d97aa11ce7b3923e18c07c7e4d133ddc0bf957cea277. 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/QM4TX2398108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b1d4c8cfb3c1f84d436971a098d2ec11ad5d3af6e4a0a1c9660aa4c4045209. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZK6F2316076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0bf33025e7c5d2ad7704afbad4cd93ba1d812b517701aed6e36ca7c5f34e10. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZK6F2318631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e453480665688f5c6d143cdbec95dd8a094529f45f535aa231efea686bd5096. 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/QZK6G2302173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3508eed6dd26cb41674ec09a336d368526f8a500fd8696036269cf7dbc784d04. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:06:29Z), 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/QZK6F2318632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1a0fd5472a2eea06d1d6240ef7a3af1263425eb943380f20c122431bff306c. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QZMEM2366297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4a331db9f9fb22f25ac03e3e200bbcbc103d871ec255876be3fddba37acd97. 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/QZTAX2391715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b345d01edc271e49c654a45187a809264edde83e6b16a8323f72f90a3039fd. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QMFME2319785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2aadc4a56b2ca480861c7f36bb93b8a764c95b3673b278f62037414e3c1536. 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/QZTB62348659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ac23f00e1a3980a4d4aebe9e52002e466acb5736b4b3bc435b3e925f70781f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBLV62312350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e14eae2f7f175377e6e69dc045c9ed8dd388e340690c59028c14b95bedd78a0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US3DF2401953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a547a118c90cfec52db3d733364751456a818c3be2b717eadba77fe7fbac488. 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/US3DF2496635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99cf8eeea124ff30471481d2f607460805c2bc025d2268c3dad4532ff1d5fee. 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/QZTBB2494972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7b0aeb5d35e183b2c3773492ebc3bb923ff2fc9800309abe51042971a6b5f9. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:17:59Z), 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/QZTBB2497287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e753c102558cb5d126424e29f31bf020f5252bbd5b9b21bb78b849c3b8c57d7. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZZ792480597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d20d78a3810ddb67a5d6af4a29d073c1e410721453e60e067375c665654172. 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/QZWFR2314053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7be460350433870fc60254721827b2a6481e7659ab85ef59690779ff64b089. 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/QZWFR2314054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10a6aa5011d104e04806104b26a4a45085514633a44739b703e36d3bfed8dc3. 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/QZWFR2314055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb519cdcfdfea88590c79458cb19f215f847ba477ff93c68e0bb4b8fc151daa7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZHNC2352633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18e0158a49af43b308920218c313c308aef873abfa738e0d25ea57fecda8b59. 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/QM4TW2378775.