1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xf827bfda5e57c79c95046b6ead879c3c77b999b94385a34195c8e752d9dc2ab5. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2af51d3-2833-4ccb-b1ee-826a9f05a253.json and https://artists.proofprofile.net/proofs/artist/a2af51d3-2833-4ccb-b1ee-826a9f05a253.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 → block OTSBitcoinBlock must exist at that height 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 0x8390c28fb8f788a18da7c3d4646db3256facc9362031e8d9d6383356a7ad92bb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRX201819355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756ab9ab673a29ae5d9c1b794e29e81d1d6421f7a80ac4aef3056207c3853703. 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/FRX201819357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6b09b74ff9a05c5306abbbb13d9d398be2c663e016ed62b0ab3c2011e2063e. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FRX201819358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e23d4c0ecaa04a30fcc146f32c7a7e1a57cb40a35c0e2683aa0e1fe0f55e5b2. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRX201819359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae4518cd0a2d9f3b845e67f107f24074460910d2e9aa31066ec3f24f8536587. 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/FRX201819361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc63588e73b1e0789fed383d1476cadb8568abd71393c2e3747536308bfa09e6. 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/FR2X41921859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6b09b74ff9a05c5306abbbb13d9d398be2c663e016ed62b0ab3c2011e2063e. 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/FRX201819358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bcaf60b3993e31c8136c2877e39c1ceb3053c0f264a564132ba5b4ec3bdbe8. 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/FR10S1937931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756ab9ab673a29ae5d9c1b794e29e81d1d6421f7a80ac4aef3056207c3853703. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRX201819357.
Zum Shaitan verurteilt (Extended Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85b6cee5cfd87b46797c242996894cc5517ef96dbf54333f8e59b27439d3896. 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/FR2X41803315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abe1c809379aedfa8ae9f43d1c69eb6e31c7192a005441ebc3ad368d4cc2411. 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/FR10S1863115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c44ad9dca5c3223ea04601255797fd2d6527ed6fb08516de137152d060ed7b. 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/FR10S1850652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24c89fcfb0eb63a14e646cbd5995f4df3a18839caa459bb62590d2d857730e8. 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/FRX281724508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782f1e164d95f7b6bbdcedc4bb05ff660ab44ffffc1472c223f3bb49e68fe9bf. 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/FRX281724509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3668b6aca90b3b487c81c02dcbdf2c1e5629e5ba102896c1550158e0233091c1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRX281724511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe921a8d74d719c28adc9f29fa61b64dcb6c44bc234dd197ad82861758438d731. 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/FRX281724512.