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 0xffeab455ce0b6f286399514ccac2cd8427c4693fbebe7a3b2c3ab2750b68d876. 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/5eaed0fc-529a-409b-9343-df19cc646313.json and https://artists.proofprofile.net/proofs/artist/5eaed0fc-529a-409b-9343-df19cc646313.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 0x48287f19080120d281cc414c73113aa7b9c7f771f0bf0f3142bd9a9f131b0831. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBWWP1702681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e6153f4c80356df264b76bc10f14f7363ba758d0176d9dc02ef15213be4458. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/GBKPL1664381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcb79401dbbdea52d2278a679c5cae04cd0bedc6b4145f78f6f2a1b98c3bac4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBWWP1702527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785327810cf466453f00e80c12cc6f694fc45aaf55c23a622589c9dc3713b86e. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/GBWWP1602505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679d7eecbb8d29e35e2b88d7af4a3abead74ba3a205dca4ef2f3927777dcd9be. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBWWP1702677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ce9e517558cba7f0e76e483eb6ee32caff44f7b4e9d625d38f1a6c962946a6. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/GBWWP1702679.
Similar Familiar (Ruede Hagelstein & Amin Fallaha Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f5638ffc6fcdaa4b37a1a8ba789aea87bc3bbcf94e15d64107b27733e8b3c3. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBKPL1951822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b49ef2193eae0b100c75c93be992a14fe52136809e2bcca0c27af8189f3b4e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEXC82000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40700befdabd96b22fa8048ab94aa9f704ee7cbb1c5769c2e03a75a47947df2. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:38:34Z), 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/DEXO52081756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764973688299314d6238dc3497e46bf4db924a1d6214ec148cc15b5d83e269aa. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEXO62048757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33e9273003ac3b024940e55199991de2926eae336ef2261eb4328cd43f5f63d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEXO62076318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0eb1992e2fb8f818572b13b70cff21117513024bb891e2897202175d1feae9c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DELJ81960778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81168b64e48a025bab3dd2d592e9ad3306b9f64f11c806b4adc943bfea439d9. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/DEXO62076321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40700befdabd96b22fa8048ab94aa9f704ee7cbb1c5769c2e03a75a47947df2. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/DEXO52081756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764973688299314d6238dc3497e46bf4db924a1d6214ec148cc15b5d83e269aa. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/DEXO62048757.