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 0x7a0466b040a21aed38adff92fa94f01e2e0ae262185e0f95692268247c9968f4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a0e8455-7b67-4834-9962-50a702d42201.json and https://artists.proofprofile.net/proofs/artist/0a0e8455-7b67-4834-9962-50a702d42201.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 0xe1a19cef8fee96fc702323a84a43208fcd6eca30e5f52102f926cb0bedb98ef0. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:07:46Z), 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/TCADM1876522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0a76cf79f1c4cd133d37678812d84924a12d04811735fcffd43d50eb63260d. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:46:57Z), 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/TCADM1876549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8035fd0847952eb64a9cec5a2dd26e4360029c588d2cf095e03719d0284f24. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/TCADM1876552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2282aa1f0ba8cc25d5b7d91217deabb0cdb680755ca42a768ad3af07abe5566f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:44:12Z), 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/QMFMG1397073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720221425b3727af1e3e99f9a80089ba6ced0acd97e15b5046bdd655fff4ab6f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:29:02Z), 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/QMFMG1397076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01aab1731ebeb4935dd6cfb68fce4903374225679c3aac552ac942fcec2ae64c. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/ITM461900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4bbb624cbf54a645aacfa8d9d796ff79b1a8f347a1379a00cbf1cd620ea5b4. 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/ITM461900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a8e830f7f405a8e03d835f1f6612ebb3a7eca583c39eac636c348358640f56. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ITM461900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c4edf0528538d949af894c0d1f3b2ac02499684cbda3073c93fa58d2e1cb6b. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZFZ32207429.
When the World Goes to Hell (I Wanna be Somewhere Else)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9cca4674dcfb3db52d0d80c3b43ef1412a45f57aec88f31fd9a48e34307a1a. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/QZHN72254956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19dd65c9dd49688117f4c8f2fbad624ed1a9ddf26dce1014d94e0b43710b98a. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QZES62472555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e7097ebc83adefca8e021528b0a9f84fd2a720014c4025b6a52f3041c4cd00. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZES62472556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c2d1e2ecef2c3a6d76a1599935f28a65fb12a5b2cdbcbf056674721bcad533. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES62472557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615f60bf253a58f0dad0c29bfbec49c71af30e6097dbc4423f16d01bb2a7ebd7. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:03Z), 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/QZTAZ2306095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f9c9eb14836ff1ab7d3fb3ad0de367b06e0ba48010c332db37853ad7f8b976. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZES62472558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d0fbe05c6bcd9c3628b2a6a7f46f1e6e5e8bd947476e80d0e2edbecc36c44b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZFYX2431915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a963131bf24cbc43a892983e452a7e5bcf30d8182207df62c83eea95aad14a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZES62402559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bc1ef6d9b2125a94828b5e8ee0567d77f1cd42c001156e8990c0831bff8414. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QZES62472562.