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 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 0xf7fa2d6a7427e6c75f7daa88ac699257fdb9b42869fea04de34801fee00375eb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51ac7c10-1ca3-48a1-a397-e8b920e63e30.json and https://artists.proofprofile.net/proofs/artist/51ac7c10-1ca3-48a1-a397-e8b920e63e30.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 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 0x8a95ff805b141e1d6f6835c6764b9050589048d0620867ecc7bda40777f7de05. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAFG2049716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1effbe0a1a6a589ef6c4a48c6ab05c05303cdd6dadb27f8e5ee0e653c8cc79e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCAFG2049718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d8af6bead9c1105b0653f7940bbde1f00259d2012e29bb4f653bffc00acc46. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAFG2049735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95693b85ce069af6972c29466044fa336b8b23fc440105c9b7a31847e445a0fa. 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/TCAFG2049751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9564e33c44ca461331d64dc3e52211e581f125bf2ee67c2be5148532ecf9ab1. 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/TCAFG2049783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e7692803f329f27e1dd699b643a71d18aaf5a80ed3fb98bbd909ef8f7463d9. 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/TCAFG2049787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecd37c702ecaa30c6890f69a19fdbf5a02c1f4f2f49e69fbb7701a3a518ae2e. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/TCAFG2049807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9505b252a3e5698d05b6f39ff77fb6cf7bd83cf39a7bf6339417adaebb181e. 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/TCAFG2049809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d3548a3c7e5ccc863fbaca3f2b71e65e6bfebee38bf8948bff98d11d3c990e. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAFG2049814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be96a69007743822565eb4058e59e6b1fc5482de66f95d6006af4f9aa2f3b9d. 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/TCAFG2049820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c61763d0491cedcddd7a96eef6c7c1eead71d53e1fb7b880ac6107a5090a1a4. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/TCAFG2049822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdef1e347cb6e817f383047820ae50164e3cb6b965ac419aafc6bcd96d3f1e87. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCAFG2049829.
Project Wingman (Anniversary Live Orchestra)
Project Wingman : Frontline 59 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa634444cef9b56072b8459608d53fadf48fe612918c50db24569053a30979c1a. 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/TCAHM2342704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec49d5e81d60d9975a8d8e23b0acb9ad4cbbe8fb6167878db44fa7b76c676907. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TCAHM2342710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d26c0b698d1e005726e74ef16edaabae023d5afe95b0479767023c8df12db1. 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/TCAHM2342717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542ac83de7b481a5c5af2def0138f7e62c07c52a2b7957bee0d53801c8060cdf. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAHM2342727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76524be932796681551ec9ac00df18f4484418e4e61534989c442f953b26020b. 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/TCAHM2342776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b192df838e63d47fdb1018125cd01b82c006c313f4732587afc526c2049398. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/TCAIW2465614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11ded68290ba674178cb9ce41aa10e36b17b8de49a91c7f6425652829c10e27. 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/TCAJK2558629.