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 0xa38a0e073f41aec8329ace045522187cfe2f28c1241a6e6c89dd99aa107d88b6. 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/e541cfcd-2333-401b-a3ea-f538272e67ab.json and https://artists.proofprofile.net/proofs/artist/e541cfcd-2333-401b-a3ea-f538272e67ab.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 0x717230de3c2b47f204c19b178719025433a676a35af8f18aad134a3f62909163. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:04:23Z), 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/USLQZ1001372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c6aeb997e185cec915976d5ab4984cd17e5048ec439a0cab5ccc8dfea48317. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USLQZ1001374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21a4926ec2375a5f0609320520f0274ba989d3165eb7797e29bcb9acc125a0d. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/USLQZ1001375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3728f066f434b0a9176634265431c097dbc899c5e81c429e880fdc4d64a4ad. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USLQZ1001377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aeafa5762d04aad66762690a71dc73f7b2372af5843666e4ff9f2d82e92d676. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/USLQZ1001378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443ee3f576c05a5181019f3b3fe944b27d496a915fa01b9aa697fb50f9a07d50. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USLQZ1001379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3923f0348556b37f774632bad1b7fffa3942647dfbd8cb3b34436c67c3b854a4. 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/USLQZ1001381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d86d1120316e244257f6e4a5d53815826c476330ee1b0f9db9f2e89a23b579. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:03:53Z), 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/USLQZ1001382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae181b60359bb80be38f2f0b252b08834eee4e3fbec548e4fd229d8d75f6c66e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USLQZ1001384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ecdcdb62c1ec4e697ba6b2086df4592ff89bf31abf0182d2af60893af2e1e8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USLQZ1001386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268663d5a9c6469eb8a94070a82501fa5d2330ca6c036329cd0ff539a13fadbc. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USLQZ1001387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39453c38fa214c79fe065ba9440c1a263d1cc92e65d435c35c618d8ab9329df2. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:07:03Z), 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/USLQZ1302016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb470782b2e73f28095c13baf443482e569f6f0ea7e92e6dcf1627bcb6df4b77. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USLQZ1302017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f5e3c813b8f51ec037d1efd8d4d02b286064b575c33471bd526c04e93c1dd7. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/USLQZ1302019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2cb152db8aec392eb2d6487dc1563bd522ea5e72f58dcd50b09e7757355197. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USLQZ1302020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb384e9f9825e56dbc3711c7f633791ff6222c2ad0674fa7887333c035c05a3d5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USLQZ1302021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994fca33b5890bbdca4eb0d92709809dc9ec5e70cc4ab945b8201dee1a68732f. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:34:45Z), 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/USLQZ1302022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc9da7d5de82b26809703b7b11a2ae872dc45fa88e1c2626b1fe22693592d32. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USLQZ1302024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c41d2b496a0ef06e6d97a2bd30195d69deb8e2e3a464178a7daf53e76f8e22c. Chain 2 (Bitcoin): anchored in block 957611 (2026-07-11T21:33:50Z), 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/USLQZ1302025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29a80001bff4345e2bef118f70fdf47e8c6cab7f13dc49861211458da39b11c. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:08:03Z), 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/USLQZ1302028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f56bae9394a9e75fafcc8051ebb2c7598a755236544c7a64fc20806dc91424e. 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/USLQZ1302029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c2844f3e8c9d92f77da32ace7a2f682c4035d34a6eecd2aab00fa257ac099a. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USTX61600031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e059d460a2614274ec91399d2cc8b856242055ca4738d524361c22400c1551d. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/USTX61600033.
When You Experience Reverse Technophobia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30693974b0b0e897ef18f838c84622b9ee504e5d910b35966c668268d1c2c31e. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:56:36Z), 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/USTX61600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281515804331fdc806515bebf006ef37d680918fe6e4ecffabeb05a849537bc5. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/USTX61600037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346131026f2ed229970e4f01f25ba3a37a3b38c5f13dba2d906ecab62da56ca1. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USTX61600039.
Rachel Dolezal and the I Identify as People
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315910fcff86ccac1ca5458924621b00cd78b6f44c3c2922dfa981b76232a6bf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USTX61600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0b3bed6f2a856b507ce2f67bc8aa5ccaa44b4adf72e67b9bacf0f84365f587. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USTX61600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25db765f3d6eedd9bfb59a1a118d957f4cdd892b34dd7bb7e32db3668cad3857. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/USTX61600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6594effbb5fe3ec013fe8792251b73cb74701082e384b550063f43cdad60005. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USTX61600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a52054e7fd1c8363034250d9ed4087ffed82f9bfd0e23bb7d3e3f4a4e0d2cf2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USTX61600045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3369f5c291e3d9d4754ff9723e2d4196b753388e6fb902ed1c656e3b7df18be4. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:51:50Z), 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/USTX61600046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead85f39c9e977580bc1e9cafd49891dbdf15f828e6593fe663869670c313362. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USTX61600047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8c66b7e9f6ae46a03806148534058cad34c627810e273f6d90ae84c40e3971. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USTX61600048.