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 0xfed96dea841f14ea053ae3c08908c54ab5fe8c39ac90446dd0254618f9a0b50a. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd1c7a5e-048b-4529-9fb2-bee76c81df82.json and https://artists.proofprofile.net/proofs/artist/cd1c7a5e-048b-4529-9fb2-bee76c81df82.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 0x356d43e5a067d7a5acde321a6c9d7f6da8ffa1fb6396753ad561cdb98586bbf7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AEA141205944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792de861982b0be9721ffa4bd4a64fdabe75c2d481b591aeda50ed81a0a908b1. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/AEA141205947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8610ad91fd4ab6912f14bc301e253b32d8cc4553a5af9856a445a8f80a959b80. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/AEA141205952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb78927f80d6c3191a5b53a41535318ab40a32cbf9b0e9f1826edbf39342c39b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AEA141205955.
Arabian Oud Nights Musical Voyage Across Baghdad, Istanbul & Dubai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5abf6d806906d3ddf4e01864efd358a449005af9b4fbbc56acd49e58ca1796. 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/AEA041200347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc2e4f94add374f30aef2bc52613e7d4045d96d536d34ae6f2b0c9293c50f54. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AEA041200348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ebf61b94b72e5fac3c110c002c9a51796d1cef967629439e6fd127ea258a10. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/AEA041200349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42577aa458de52a2918a8304a8f84d2e18fb632e48f4af88be3723eb26cd3e1a. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/AEA041200350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53575808d5a27394c4e2ee315cf740645a46e92e8711e00fea5ba7247a506417. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AEA041200351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed4a5e18d0129db34a43e33d36b15624aa573a8a410befb673d6fdc1969cad9. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/AEA041200352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ba2286307d6e5d12d1a239318fa3f36967c539bf2bd6ad9b5c950ef439a9ae. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/AEA041200353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d11d1cfb2df8d76c51e6db44639112203afa01d7bfaf6e49c882f8d39d6ecf. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/AEA041200354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829b77c7ed547e5c87f7eb48a8f322fa959130b8195a582bba751c0eea550179. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AEA041200355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1b7fb607aaac234330572b312652c2677bdadc28ee53fc6a8a6aa76a9f1cc8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/AEA041200356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c28ffc5e0e6d464f8708bb346d98e98ac188878e447d6633fe5e75649112c72. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/AEA041200357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ccb5a6897dae72fde842c33e59af884cb92d319365e2f8bbb8f3c9b6195979. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AEA041200358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa056e1bb7b294a1633ca84e15c67d42a13247d58f762bd392462d22e80fd1a2f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/AEA041200359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe7721be4c6127c0560db69bcf4ef185bd68f499e9eeda3c5ac174d731dccf4. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/AEA041200360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe437fe9930a5ccee81c507e85e58d909b5b580d9573102449c596a92ecf342. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/AEA041200361.
Royal Scottish National Orchestra Chorus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8bbd1052a08bf3295e996f457d78b5ae6a17eeeda425780ab780e0c0d4cf65. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AEUM72200121.