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 0x6218e2562e36a4169a27c53bb37b76c97424b9316ab96cfaed852ef7fcb7883e. 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/3ec0adb1-368c-4177-a2d3-a1cb7738f9e1.json and https://artists.proofprofile.net/proofs/artist/3ec0adb1-368c-4177-a2d3-a1cb7738f9e1.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 0x74d9c763a78819817f908b8b3c53802006a88f510c4a9e6122b93059c0bcb04f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM4TX2020305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cd3978d800b942de4f347c819dff5b46131a6951abcf87e1c050b14dde8b0a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM4TX2020306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73506a3b57f58fa4849f295ded6dd4357036999d7e0f9c0aeec7604415d6d87e. 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/QM4TX2020307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ece8054f1958f45cf58b5d4e46462f522f3809d70d7f09bf2edadc4f7700630. 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/QM4TX2020308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f9c9fee4c5e78bd0b3d0ab40ad2943ef08790aa6a8ca63e39423d4f67688b9. 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/QM4TX2020309.
Buğulu Camlarda Devrik Cümleler (Cino Junior Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78307de20e9f19eba490f8ccbbfa653d2d4e7f604bcb1a4c8e7848652e0462f. 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/QM4TX2020318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3006a200e73bf4ba4bac28c558970661fec289a1feb06682d0b3367769d9f7fb. 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/QZK6H2103411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6837a67c58e7b2251938cd0416e88cf5fe8024fa8db6a1edd31407870a6a1f. 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/TRA162100528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f11e2980c634cfe84fc6b99209c2cfc9ab8f47d93810b1b887e66f6617db9d2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMBZ92483439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c8c8051bedf34e9693338b0a943b513ea0c6c2da8c226d4529aa01d863d329. 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/QMBZ92483440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6dfc062aea94204e8d00a3e43b2c2e13ccd6222dcb9c2fae142f254fbc86df. 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/QMBZ92483441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c478a2e6ea772bcee1b50363c66b2cb8684813b4254faf5baf1afb1c5ca4f5. 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/QMBZ92483442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f362bda0cc4f50f060966b9a372ba716b47a2d2eb531cfcea63b5583557e43d. 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/QMBZ92483443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7060acae993c13e86baecf4e93a5f2c96b272d2704827b72b2883c16f44d382f. 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/QMBZ92483444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67ab4e5b32fbf6c0dfb8f63d2b3271825fd3d7413121b79070cf4c931a9040a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/EEHU32001265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129f38f5bc9c91dda7f7c3ba861c409f2f874c317d7721740d62d630c22c6e0d. 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/QZHNB2012882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77d9cb8b1e4933924957bfac6d112915d4c3802eb9d46d67f8ea3676a49b0c5. 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/QZK6Q2151503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ccc1a019031a3da5a11498af532fff95682cb7ff5552d1b05b0cae75f166fb. 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/QZNWU2484928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89cdad22e2e773a5f977740b2fb685dbac4c3be13e58e9f430456711fea7888. 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/TR0012200363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1aa51bf8585376fe7455b29117d06e0886eadfaa6962c4d8e3190b159ca558. 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/US7VG2520253.