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 0x253838d367a0f21e5c933680735cb61c5352fca9230141c551c6826a96af376c. 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/454887f0-cf34-4eb8-a5f1-6ef9348d3409.json and https://artists.proofprofile.net/proofs/artist/454887f0-cf34-4eb8-a5f1-6ef9348d3409.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alligator Records 45th Anniversary Collection
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 0x7fd4533316263d42e201facd4d35a460642386ccc16beadadd48f544bf2d76f2. 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/USARL1672802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f6dcfdd779f97370f0a736cde00def42885b9d4eb3b3d6bbde652e93094c69. 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/USARL1672808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5ded93fae6f378b718236bf5789dab021713bcf667e7e5b94c04d5324d3996. 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/USARL1672809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494dff4ff4428cc8fd2ff06625fc4bbb9eb3ebe86f4d602b16b22954bd1422e1. 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/USARL1672822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d981455c742a747e286dd9afa4cfc9bde769f5882edb85b2a0cd5d4b648158. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USARL1672818.
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 0x35f2438087c253bb6706fd3a19aa1fd128478ab5ef5bfab76b999cbfca379676. 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/USFB20605577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bb9e0500071f8cdbedad1d47335e98cca66aa241c9f072bfd391b9391c43b5. 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/USFB20605585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c866d48873b5e552178be557e1921e941efb86f64219b3236079f718369471a. 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/USFB20605586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd345700c9ae92019158698525f88ee0afd99f39a1fe4424bf269475cee1db435. 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/USFB20605589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a84ea12e96e8183c9768b1a7c0733235f948c9403e2f827d7287396f6fb6ee6. 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/USARL7170101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a122e7a47dfe3b4664e7ced7365de3f2fd45c7e77c9f669590127db78a386b. 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/USARL7170102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22026564a17017c87919d49b8780b1a7a0324dbad348e9bad7ea5d3b81a35940. 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/USARL9170103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe886b3db6e329722c6f92361e0380395191c18670624547c635cd688e6fd5c03. 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/USARL7170104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36223ebc6877998da33a7f9a95054d540d6dfff03d7b92ae272aa20d322827c8. 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/USARL7170105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef797768fadb2cfdb7d00cff5d50ad7a2ca711e331eb9806677d84fee701cef. 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/USARL7170106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f768794d7f4ac924db156662a4873cee1d98600a753c19cc9b408817d5ffb4. 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/USARL7170107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95510e7f5e635214699cd1917498950d6a614bcfc498571b67bcf229e7b6c2fd. 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/USARL7170108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e38f17aa4a8639e13f92ce66efe64170bb70ec95bd7abf8f2fcf05a9561799. 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/USARL7170109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0b4dae18514b7f07b64ec63031c9d9ffb17b433c2c898c3590a3b9b917604d. 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/USARL7170110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab94207fb3c7ea05e00db81c07372e9adbf34e76132a1d7a1b8704bc2f28813. 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/USARL7170111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf4721504eb9ab71c4c83d50311278c58675919242ae089521e25c93dbb04e4. 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/USARL7170112.