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 0xaf7a2c173baedd8ce1b78cab3829b2a9f7ffc3bb6021a13a2a4e793c911f9845. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b2e1cea-303b-4cfa-86bb-b16d633eac3b.json and https://artists.proofprofile.net/proofs/artist/5b2e1cea-303b-4cfa-86bb-b16d633eac3b.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 0x4aac06020a497ccc7ce6b06555a321d1cfd1cf5a623bed106034cd0654af36c3. 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/JPD731000312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379788d8d7e4b079503823e130b76064b74513a039e9b80bb6d0859ad5ed7592. 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/JPD731000313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49aa2547f131c0d7ec22fe72db88753a5092bfb1d415cd6a7675795e471f0ee8. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/JPD731000314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ad51230b8ebbb91e0fa0418777f184ee1386e5f50d8b1f3df437c4d89df9e3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPD731000316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a92a1a6459c2bd5e40c665752012e9b8959a5ec25db75b1906ed8dbaf0b8b3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPD731000320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd851349da09c94941ae324d5dd0133a13523ccbdbbb1f9155b7687507af72b5. 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/JPD731000321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb527a9eb8c0867efdebf3997701eba31ff385946d520e6be3f7728529e5c63b4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPD731000322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a37e2ae67ccd02f4d4f09c9e1b841c8060df22169d3892b83b30224797d3f7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPD731000327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33206c1b9cc831f87c829658ddbefcca6f982c85cf9e6947ba0630f867b7997c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPD731000311.
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 0x02ac01b511c80c98ccf0fa713909467fd3bac1d046ced6d6ce19d90fc4228f03. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPD731000315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1757400760f83e407c1a553c1e8a7f0842d4b4d6f54535a3a8f6c62f63560afd. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPD731000317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe293f23b2cb31bcbc26fa4c6c2fbe158bd16f0b34d1c6d5a78f9dce8925b6a71. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/JPD731000318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ab390b7c85e508d5e59875749f1d648da83c0fc3e9bc9ab83a074ccd0ee7a4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPD731000319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a6978c6897ba5f18c4a2ca394b3f494713c7011340780526feaa3019ccf684. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/JPD731000323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd1e462c6f786b255dc2ba8109d6107d67e51ccd0b609c018ff807cd1024581. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/JPD731000324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f346c60d3dff50efc0e8cf523c94dce0321d0090ab85ae4bb3a25b1a1df51df. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPD731000325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19d43c7a062683f7acb6bd5f07266bbbf4a925face124fa7accf26b8651fd42. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/JPD731000326.
IN YA MELLOW TONE GOON TRAX 10th Anniversary BEST
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c292210f87f89c75b6c061c252f3e7b0e26a1bbb6b74b57e4203ee3af49f3e8. 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/JPP321600454.
TVアニメ「W'z《ウィズ》」オリジナル・サウンドトラック「IN YA MELLOW TONE×W'z」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d7b3714bac8f92b5807c44abdada0484f24d47c5a6ec57ce8ae84dfefe673b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPV751900910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11792339e1e1148a4a593aac7d34f68cbd0fd75eaae8a562892ea019c7f79779. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPD731300387.