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 0xf48f7be8bde3d0c80681e64f9eb2b65bd022e9fd4b3db8fc3860f00fb7bf75cb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/320caf4f-887b-4cbe-8448-36de54bcc611.json and https://artists.proofprofile.net/proofs/artist/320caf4f-887b-4cbe-8448-36de54bcc611.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jesus Christ Superstar (50th Anniversary / Deluxe)
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 0xc96a10b34a8cbd77e33036094d8e6a7e0b2b8faefdfb34b7ddd924b885ea53d4. 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/USUM72023742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0143cdee140745369657b01a2dac82f90061b8669fa0345149e31d97832a0a8d. 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/USUM72023728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7477e63152d1ff43833238736fe385d035a95953aa77d4fcc5a4cb748507d6b5. 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/USUM72023745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7180d2d06675010eb77749757d0164df70ada44b7ab158988b139ce1328219. 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/USUM72023584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4572bddd0131b9cddeca530536ae0a38834e9e56f61788afb36a5d82251e9c. 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/USUM72023746.
(Too Much) Heaven On Their Minds - German Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff07b92c6a86ed0968f60b0e35ba9327ea8b047416420f9f075cf99aa96bb2fb. 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/USUM72108278.
Jesus Christ Superstar (50th Anniversary / Remastered 2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96a10b34a8cbd77e33036094d8e6a7e0b2b8faefdfb34b7ddd924b885ea53d4. 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/USUM72023742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7477e63152d1ff43833238736fe385d035a95953aa77d4fcc5a4cb748507d6b5. 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/USUM72023745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7180d2d06675010eb77749757d0164df70ada44b7ab158988b139ce1328219. 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/USUM72023584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0143cdee140745369657b01a2dac82f90061b8669fa0345149e31d97832a0a8d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUM72023728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4572bddd0131b9cddeca530536ae0a38834e9e56f61788afb36a5d82251e9c. 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/USUM72023746.