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 0x5ad021c6f259dbdec50630a5ac273c1f51ebbf4dfa69a96ac37dbd304c0989b6. 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/1afd11f7-54b8-456a-acb4-83c91281e15f.json and https://artists.proofprofile.net/proofs/artist/1afd11f7-54b8-456a-acb4-83c91281e15f.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 0xc762117164590d899c2be6b5eb7c8fbe6c98c3c3cb58a974fd4a7858f975874e. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:02:15Z), 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/QZAPG1898376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf297757e0035acdd00c0edfa09f12a29c44e56d41bfa402a0717c49491682c. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZHNC2168166.
F With U [Tropical Version (Radio Edit)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f16875f9cbe1905fc757fc4e0e1bbb09fbfd3d0b23cba2203b5a8fbb282cd99. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZWFS2326830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0de659ecb4fe499506b73639b658fefe166ace09d844a5bbe95cd8b34bb532. 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/QZDA82407465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c60d8bec72c4b3d00bc8474a42bdbd73d95950cebe0b902ea086215266f5ac7. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZES82406413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc4ba22b4f4e3d3cca88e83a8f4567e3fa70b44d58d9a91464b06fbab192829. 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/QZPLS2422742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae2d55cdb2178df061b5e4c471465b6a94a4eb6ed2fe3b6a9c9f517510dba94. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZFYZ2520080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62263b149cb8f5f7a96ece5c39b1749168e6323756b63c01cacf3e7b71b32775. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QZFZ72583642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbbcd01d303c15228e08b0b7fb02e7819acda1bdfd008b00120bfffe4b617a5. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6N2550337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85abcc1a2d110b5a15a529b7e9d79ce7a88ba10e005fa44915578d39d144dcfa. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:32:55Z), 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/QZZ772569313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1020b11d3446dc1e1ca00880eb4dbff5f7fec7a16bc36944ac4dbe7d7d3e76c9. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZZ7L2551754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1436a53137e46228b48e4d13355a74f0655257ebb41290079744fb6605625d0. 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/QZZ7Q2562816.