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 0xba3cc089fba0f3e32796e8a17e0d6d8d78e960fba34c2400b5a43e4059181da3. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5e96ca0-6c08-43a7-a3c5-aed44a61020e.json and https://artists.proofprofile.net/proofs/artist/c5e96ca0-6c08-43a7-a3c5-aed44a61020e.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 0x533e5198cb2f05ad3f31c1ab8e6cebe6b2e77967ca090b0fe9828cb7baf24b3c. 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/USA2P2222783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83eea5766f853d15dbc55f848b60cddf331a01b6ede33f3529b3a8fc1a225958. 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/USA2P2226501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e496c6e5863070fc242183a3b1f261efd9934b3128dcd19da9618d6bd94c92. 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/QZNJV2295412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434c1bff3ebbd61682944edbfa6012c3a2fc193b3faba5c3ac5daf29fb229659. 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/USA2P2243762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efd6c1c8675d4c979b2a07ee78da803dab6dafaced7cfc9be424551ac0e338c. 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/QZNJX2248696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd1309e0b971ce2836135ae0552c0baba0297fd4e25f3fc37b91cfd5981909c. 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/QZNJX2248697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1601501717626c207b44b79e299148243071f21519a5431822fb9fc725ce93. 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/QZNJX2248698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83eea5766f853d15dbc55f848b60cddf331a01b6ede33f3529b3a8fc1a225958. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P2226501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814833c004e06f163e5f7fd207cc4bb25d1962561a93ba123b782d35b527fc30. 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/QMBZ92397032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1da4941ba576e901cfb895990ec9cdb7b5d3e90e2bcf8cdd2dd682dca73168. 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/QMBZ92397034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346505f424671a54e16a3740b5724296dc81b9541d8a3bd02f2cceb9c2e25da4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMBZ92397041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7a7c8f1ef8a665c041d096c275031a65dd4161364b97d103ce89359719ce88. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QMBZ92397042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc77c1fb9b62483ce824a5bacc7074b473395580874df53e30d50d3298ae69eb. 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/QMBZ92397043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4d31983b9d56b4d08f9ed5f263b984b6f1247a2d4b517420e96b6103218285. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QMBZ92397044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f69067005af25f6b9042f4c833c3bc4f7ea8727a479930b172c668a5b08676c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMBZ92397046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a05b4aa2473b6190b01ae4af1d10e3aebb38ad470ddecc581d768999516c1f. 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/QM4TW2326182.
Epic Agressive Drill Instrumental - Female Choir Synth x Electric Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f00c393235d23dbc06fec7e6f4727c3adc38bf7fa1367c40cf160184064f157. 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/QZTBA2291169.