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 0xbe9893342b7157d03541a3493f101c962b42b514e7e2fb5e35d0ac447b2d83a2. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e2721a0-ab51-4834-87a6-3d0932d802a2.json and https://artists.proofprofile.net/proofs/artist/5e2721a0-ab51-4834-87a6-3d0932d802a2.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 0xee44c267c12e757089c47c8aac79185cc6bc84bc430b7abd26d6a2f30bf0f367. 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/DEB641200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f77f5b954a02d044797996ff191650d8329370c898fd2f67db153a63cbc4c2. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEB641200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74186f23e7772d3e55dd97e05c81eeb27109e56e23570b75542e96f759733654. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEB641200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49924a2e809fd28cba3e0916be6e3b4379f1d1fbe5a4ff853bf90f4416b0ed23. 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/DEB641200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652a87a92eaaa7fef345b8ab1c0419dd9978189e6d049c0c8c404b4d684d045b. 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/DEB641200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc025d85c4f4a2f331454f62d136329f9f1f110adf2e92b6f027e00d1971274ee. 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/DEB641200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e04ae12c01f4cf532ee353fd7c2794a06cb9c7b5313bb47ab69d8c69f7b66bf. 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/DEB641200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26558eca7ff914a72bf909d887ed6f09c606329429c0a21da68961d1926d6645. 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/DEB641200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5388ba99534bf0f87ce83df1bf5cfe4403295017394ad03c4fd82bbc87fe51e. 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/DEB641200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1b82ff33f0d10b8a71877510d317f4c3aafd00d34320da7e6ae31946a744b2. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/DEB641200057.
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 0x7ca7038f262c01c22289eb9de791de6b3b76d5e6140b4c4fb419bc64b8bda455. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEB641200052.
Doctor Doctor - High Voltage Version (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd038b0bd9e73a180ba14c2a8e413a4066e204b24e942855207d3ba12294eb049. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEB641200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf1bd5b0f165bff6777411901ecdf390c17d0d3db9cf011051c33b3f35ec46f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEB641200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce970661d7e449846c73d193a5bb42cb7dcef797a0676eccd48dc2bb475a381. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEB641200056.
Rock You Like a Hurricane - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1cf9909a7d99c3ef3c4245cf361f3b0ee51c035a4282336f8543e95cf3a9a8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEB641200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392f9b49193ae4a822f7b33eff938ca2d89be0f8b90831ac68287b171d109f4f. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/DEB641200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d6bb9199c5d84548b71b745d1ad52a5ae5a802698b6485d1e562adea4c2638. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/DEB641200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf433c79722a95a4842054b5ef78ec40a8d51a010a2761817af4fb455816275d6. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEB641200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80b8ac41562f965a95feb5f84b8346d1d83703609dfd0895e3c4534f82c27f4. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEB641200055.
Before the Devil Knows You're Dead - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7c596050be39b041db3fd6a81757e39030b02805b7126ed846426035026c31. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/DEB641200059.