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 0x5e18b1ead7a85f997656b6d904ba6a74281a1237785395e7e7b58f3233c47aab. 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/db66126b-8c09-4b5d-9c07-25bcd0234416.json and https://artists.proofprofile.net/proofs/artist/db66126b-8c09-4b5d-9c07-25bcd0234416.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 0xcea1c1fb2e5223db0e2cde2a6179317a483054cd5bfa1fb7235a5d305cb886e6. 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/BXD301700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d866e0ff3e5c523ae4fc1a6f16d0b5e9330b12d1003cdf5cd6602d3f363183. 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/NLZ541701719.
Love Is A Temple (feat. IRO) - Scorsi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5b6350a284e8de484370dbe152a246962877fe1e0073f4e6fe4dc878cd3d10. 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/NLZ541701720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbce8d669c147ce97c84de07f4a1be887b48111e9110399b3f068df0e1253292. 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/BXD301700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5136f3a8345197df7d7b976ed373f44834b292bdde1967dd440fd7d1529486. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:01:31Z), 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/BXD301700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb7ceb93d2097a31a8d5a6b7ed5a28e935bd1bb1c26257445674d633b4ced28. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:39:26Z), 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/BXD302100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08d66794811832ab60f16dc256b438324b70cebcf0e52a38b86d7325cf3550b. 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/BXD302100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71847e61766c58d5b751d995a74bd4049667ccd29abfaef26a644f7479e51433. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/BXD302400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e920e0740a598e9991703c3476f8ce63405113c11af32e1370abb431bc0a5dd. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BXD302300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585c4f04fb32cd9039d59a0cac327220a0d502377e06eb7b04f8707b25cd1cdb. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZTGW2400432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e8c0736f85cd6a3ca541a10f30cb83c29d31d4a0852cd956c392e8f5cf5545. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/NLXV51301029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31df01d7d9f6b8f55e149e955a43da8272c4f085576110de3cf6871724437fe6. 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/QZTGW2406903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1163aaea6e5200e358fc976ab89952d397be7a6c13ecf39dc01f8e0f8469cd1b. 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/BXS381900008.
Dead Soon (feat. Lils & Bonsai Mammal) - Scorsi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6687ef2265af710b7327606bc3cf6d429a9a50e6b1a413a8b6d5fe7607dfbc43. 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/USUG11800814.