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 0x966e09be23e7813e2d829af13d8e26803e4aabb6d5d050a35ccd806e3536f075. 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/5020e3ba-1eb8-41b6-a311-f7eafcc1c3b6.json and https://artists.proofprofile.net/proofs/artist/5020e3ba-1eb8-41b6-a311-f7eafcc1c3b6.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 0x645677868250b0930b26aa1b1f976011eb70598ee1bd29083f0d746b99951886. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:11:49Z), 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/FR8GV2266120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6579e6901102881e50a3bad27cae646f51399674dbcfa711acf3217117ff71be. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:44:47Z), 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/FR8GV2204180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72acb74c1b449c3405effc0423d822a3fe71f99796c186a0ae706a2899b49d74. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FR8GV2204140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2c39b89809b7c253e91f11f205653417772952ed4fd96dbfa9858356b46f43. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FRYAS0647050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1819e3e320e2b607281152d7550760c9084280e17fc06644a3c163f59a19bd3f. 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/FRYAS0639040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa577b7c7f6ae6f499df3f07566e3e2a9bd968346a78f55919637e2e9ab2829a0. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/VGA011020050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51177c3705799fc60872b7963c0d3262032aa70bced27c12a815eee35999201a. 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/FR6V81147265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74034e77bcfe2035de27e9e4e61451e0418bd89009df1d8767828bd69aed53e1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR6V81147255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7872be95f5399fceec52c8170efb3e2a46ce0a6d7655f7a98bdc6507d6620176. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/FR6V81147274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfa03767fb8caaac1e26f3332f42ed64dfea67d7f2a0666049311a5395331e0. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/DGA062365283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d985417d2f355c475e63658a55680334bc997ee3246912d7c0fbe680898c67. 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/QZYFZ2318716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ef988754777e87edb2c38a6d7f1da885815a9970d99adbbbcc4404c4874a0e. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/DGA072361237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccaff8013ee980f4e2f4680a55f3a208e657efb496fbbbba8410ecc0d16c68d. 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/DGA062472503.
Man Nrouh La Hak La Hak (DJ Souhil Old School Rework Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8711d1cee38efac92c69d6fac104cbc207b3ebf8cb783321df4144db96b5f048. 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/FRX872572739.