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 0x3e1ecd5a99685c5fd22a1d56f24bb0ed236611729d9fe5244bf4af3df1ea1b83. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47940725-4938-4566-8eb3-cecaa4a04788.json and https://artists.proofprofile.net/proofs/artist/47940725-4938-4566-8eb3-cecaa4a04788.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 0xa07d535048888ef63d9540308513b278e9f5c0eecc5d202fcc994a4a417ed221. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCO91463904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3675d1b5a375a0aef35b180035ef977655597f224ba6c28e9c1e77f1726da19. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USCO91463908.
Ballad of a Well Known Gun (with John Randall Stewart & Robinella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6ff11009964d27ca8cb2826ef007c3acfe28c6e9b0bd92051296a54d055f94. 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/USCO91666901.
Everywhere I Go is a Long Way from Home (with Aubrey Haynie, Shawn Lane & Ron Block)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0c49f4f3734d2e61473299e29f56a2c94a490c5ace55951f5f21987b2992cb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCO91666902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042a3d7703bd14c408aa80964d5e632a08e4c7a4d79d84820bc1ed8d95eb96bf. 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/USCO91666903.
Pray Enough (with Andy Leftwich, John Randall Stewart & Robinella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b6227609a7ecd3147c97fe9afd2c37c0e30dcddbcb7459e522674ba6501d7a. 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/USCO91666904.
Leave My Woman Alone (with Aubrey Haynie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8617586564a5f9d98ecd9efccccdf9aa106a4dca894c579bfe90298c94583216. 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/USCO91666905.
I Won't Give Up My Train (with Aubrey Haynie, John Randall Stewart & Robinella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd476e1c83c9065678841e67568d5cee0a089faa1c98a27d97794476cb1ab9fe2. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USCO91666906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daa98ba935bb5f4e832b58739af4c37427a1cf187988477f42470f801303d62. 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/USCO91666907.
Friend of the Devil (with Aubrey Haynie & Shawn Lane)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308334a3814f1964bd3cdd8b702085401c790cbb1ac8b663c7c4cd8024568a28. 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/USCO91666908.
May You Never Be Alone (with Andy Leftwich & Vince Gill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f352568edb7ff69d66cd397032add5abe9e425bd4c12849a65598c93769ea5. 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/USCO91666909.
Willie Jones (with Andy Leftwich & Carl Jackson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ac7dbfd10383e102b5696750116622a4526dc96a92253ed0fa2d750202d743. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USCO91666910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d11237577e5f60ba79deb6c5b3261f7c0e82d88c67a98cab0d464cb590f0ba. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/USCO91666911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234e539b494c62082f289ba182c1796754c21e628e1ba7e1381b383a4da33f53. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/USCO91973601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3773f160bee586ca4521dfd91e71741e47d4e3573403ee2b58970667e3bfae2a. 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/USCO91973602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb428cecd0fde85593b786eba91a72909f8804aa5cb3417c865b4d29e8657b1e0. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/USCO92279202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39df0678b5e6ba47fde3fa9b770062db820e6dd9d75a752fa0d3f33f302e42e5. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USCO92279204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a27ca002803b1bfd09cba3c9de58704e06eefbf5b52542ad1d51e684de0fcae. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USCO92279206.