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 0xa7011cde5896e4af4732dbba997be74f922f42b47063c499b58b66f8c9a70696. 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/b8f24c0f-40bf-4e03-bf99-cb01a6b297c1.json and https://artists.proofprofile.net/proofs/artist/b8f24c0f-40bf-4e03-bf99-cb01a6b297c1.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 0xbe0d36246ef73a8d8a0467dfae04c204ec10298776caecb3f6f60298b1f73375. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:05:09Z), 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/AUNC10809270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f961517eb2f8778306ad28378e736581daca23f4dd9f721f59cc2af65e52d0. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:34:48Z), 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/AUNC10808675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d18758ea96068a584f8c5be1669ae696ebea93eb9c4c1cb9b934630fbf10e0. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/AUNC10808676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084b2c480a0666c0fadf9c72b2240814c18ec3450dbb25cb94ffcd2fc544e855. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:47:48Z), 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/AUNC10808677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b96d1019e8682e26b8f63cd8e5db65210e94bb25d1b012d2890fb6c8429bc8d. Chain 2 (Bitcoin): anchored in block 957674 (2026-07-12T07:50:41Z), 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/AUNC10808679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f18418d4f1352d5e2c9a092c8536ab26113fa1a5bbc281f30ba8db7e79b5d7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AUNC10808682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fd80da6ba5485534d1512df4eca43dc3f37c77dfa839d5b8834a93457041f8. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/AUNC10808684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62961ea304ed4d17c3eb1bbb3678e498b365d462c88957e2fcf4bc7352c54116. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:18:38Z), 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/AUNC10808688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746e32560398141aedd6211124e69f9d8cc383cfa44128288ac5e966e22d63db. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/AUNC10808692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c0af780c2fc164e4f4393af2ccc9a2ed411341ea8ec414a6d563bd3ec25395. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:40:54Z), 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/AUNC10806489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a51f12bfbb4b55e0a826431db5d96983a74cfc5502663fb681b8b647202278. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:13:56Z), 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/AUNC10806503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0d84eba0421b85b4c1cbfe8accffffd012e4c088cbce143a28332ae4408533. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/AUNC10806515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad029d33cfc83ca38dabf9dc99d39732ee2c0d577372362b55dabe11269515d5. 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/AUNC10806517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8250ecadb0054fad877483831f973402050c269fb874cdd40839d984a873629. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/AUNC10809361.
Nga Wira O Te Pahi - The Wheels of the Bus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec8c46c11c8a542700617da0286502db3ddbf9815c3a50242ab123e25bd0669. 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/AUNC10809365.
Look at Me I'm Moving Parachutes and More
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe415a0e6afd5d4a83586902e7d39af834db8bafd7a546d21ff456ae9bacfe5aa. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NZAM02400645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fb2af047c096f05b761faf300a7edc4ada011efde7cb35fb0f453cd9b0e276. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:10:49Z), 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/NZAM02400675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ad43ba6b24014303b001c3c94d028b3374ac35a5f3be45dec53a53133ee5d2. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/NZAM02400737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91df1aac0cdcb98861f5d5e7a9662d702c4fca7baa1dc8ff574b695405dd6a39. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/NZAM02400738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e273059971b9aa85eb4803455a31e239b839585e8e264dbf30525fc5242a455. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/NZAM02400795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299dfedb3928317e443988d4ee95b2dafbd9fcd13ada8c59a3aff54959c9514c. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/NZAM02400663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797ff48d7fbd2e511ae05f81571a2c0ae1bb55be413ed7b6636bcf7126588ad7. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NZAM02400741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99629715727c9b866c5f9fd8c26a421f00d24bf4bd5c3d19d85b607927cb5821. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NZAM02400646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b037bb976e3e85dc0ec9bba38a4999896cfd66d3635df5c47a35ca767aaf13. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/NZAM02400683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72cf1de7710c9a581b6b97706844e72d5ad15d3742532aad77c4d3da033dc48. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:33:20Z), 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/NZAM02400694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a72a870b27dff4028f554a2abd2bfd1595b4a674da72b9a28720e362e43f6c0. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/AUNC11000331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c94074e5252af90276e42fc3bd363120239d8a56290980ae6eb2afb20fd4b4. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:29:31Z), 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/AUNC11000350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c4450ecc8b9af6c948be3c54c7d07bc68a8e5ecf112c8b8c32495859ccd120. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:34:48Z), 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/AUNC11000357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60cd8a4c7c66e64374df5fd6c162afdc8dd19832808682f0cca250ba971a5f2. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:20:00Z), 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/AUNC11000358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1afd6977a1530db4c22d325c2f22e1dafcc570c435d4d59049630c71e9daf19. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/AUNC10806574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68324712c0949c51f9c2ca9f9441e7889a795f277f7fd0a901f0de3ee98bc640. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AUNC10808977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4725be172e90664b9af7a9f4b94173ee5b6976da1a60e8856ddf3309c2a65f63. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUNC10806475.