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 0xcf41841acccd77407e3b3e81aaddaedf1116a614460a96f49b42227649803de6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47cc3f0f-3623-42b6-866f-e0ada489cbcf.json and https://artists.proofprofile.net/proofs/artist/47cc3f0f-3623-42b6-866f-e0ada489cbcf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Konglish (Original Motion Picture Soundtrack)
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 0x49fd551eb8e9d7d9a91f61898693ae061c185725872a67f8e8eecc91de5114b1. 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/NL8RL2429502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e3615720e157ed7e43863687c999fb5c22cfa45389eb6890836a3b7116ba99. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NL8RL2429505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b888e8f5aefaa3b67359e7b308789b292d6dddbde5fe169106f10e7137cd690. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/NL8RL2429506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba64029762c3c0137fbc6cbc5a6dae631fb5ecda59846ea5fd4272d22099ddd. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/NL8RL2429507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c618732b70458388f31142969bb5d0e8c33520ee7bb001fb6768cd859d83e1d. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/NL8RL2429509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3fc4acc268e9ff5a8e1046f9f7d5bfaa61330d15f5326480dbf6665d239eed. 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/NL8RL2429511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd663169c8217112db73bb6c058913ed685c8b9f3a36169f8803a9d9810427f35. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/NL8RL2429512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889fa17f336e4fbaff5da99948914bd70762cd1691e3731945fffb3f8563e32d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NL8RL2429513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa697c80ec5da28a8465e96cbbf1fb984c374743366031df6f35a0f3e40ecb1. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/NL8RL2429515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723355dd7e4da967f62e2be783a99e8b32a6dc2680f6a91990e5ef49496f43f2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NL8RL2429517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bd9b23fa8b1c830302e64ea40e89ef21d40ec89ab8f4351b1af0f10f047dac. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NL8RL2429518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d04a71aa0246c88bfa965c67246a7c381c24c4f759b7a9932c9450409a69562. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/NL8RL2429519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe853362dda2f7c76e58848081b246dd1a0ed5bd03fb20c05999cd3bc4ac7696b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NL8RL2429520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06b8ee0fc4581f2691ad2f764b036c6e2a24ad867061cc8ea35023b3fd8f705. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NL8RL2429521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a85a43ead0359d34c8500b0fadfc519cd18e1f5694ef9ef795eddad1bc7724. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NL8RL2429522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914257ea8497e5fbe7cea33e0830de6b76377532294b702ce31d0bea4641b721. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/NL8RL2429523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25bcf4f6f1b372c79eb35eae76347daa7d0954f80a2fe72881f9368bc3ce728. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:05:56Z), 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/NL8RL2429524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c5d67e49f65a01e95ba99068246204e9d28ba0ecb09dbea3efe09d432015dd. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/NL8RL2429525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d58c954d9c285021d73b898c3fd82b37f7fae72a57d53988478009a1dfb45a. 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/NL8RL2429526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6961dc4a9628a0b2d36f53808c3f40d9ace312b66ece930f78d294f2b19518. 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/NL8RL2429527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095cfb00b7f22d9132e021146a7ff442edbe54690903ed9cdd4fb01edb4753db. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/NL8RL2429528.
Bracciante (Original Short Film Soundtrack)