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 0xfe6b6a6563cf6256917841121b9a6286c6acebc3eadf121c8ff71b2ad274d1f4. 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/97641f63-5802-4de5-a4b0-18f046343969.json and https://artists.proofprofile.net/proofs/artist/97641f63-5802-4de5-a4b0-18f046343969.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 0x410f4544bc00c8966be1836e9ac2dbfecb5daad56619324304590d57bec7e8cb. 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/JP92N2223246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f14e4de3ccc73267b7832b0de86774cb20435bc5feebc115ff67407eec354e6. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:43:40Z), 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/JP92N2252255.
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 0xc1040f9a33a4b89720e4ed3485b4c603f76dec6ad767e5815ca9965bbf24567a. 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/JP92N2318783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197232f9c7ff95fca415c0ead0f104d1e2e10826494961d4383f307c18a9dd27. 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/TCJPS2231146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c34786998534aecb37a86075ae9bcc2d2342f14296efe0f99e5c9da5bc3b59. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JP92N2441184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0793fb5fb22c63b10ae9aec3235507ed5afdb5ce0402dfe0b92e5a3a4a75362a. 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/JP92N2428118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1040f9a33a4b89720e4ed3485b4c603f76dec6ad767e5815ca9965bbf24567a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JP92N2318783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f6c7b56a61172d64a8ab0d0265b8341cbcbc076d81b17e42d9b69c11a07f95. 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/JP92N2441186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c42a8da4923d364f253b4aad8b6e51c56d392983c8d2858fea3f56eee47b173. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZS662252947.
YABAI (feat. TYOSiN, Kaine Dot Co, Moment Joon, KOR KASH, SKOLOR & AIRPLANEBOY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc118f8fb52fbcf1ce7b0152607f6b0f6af0ae20b6d0ec85c919d7cec118fb81. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/KRZ291817104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bf865271025c192189373dc990a6efe85abe23df22dee19f8b13ceaae491ee. 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/TCJPX2321068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c43cd2f8ed794055a3edd4fd9e7f307d4ef4386a363a3b0773534e80b6cc3a9. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/JP92N2441185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07b8a89e03d0cb3b442c5886310eac7e2bdb965a6bce5bf4aa9647b23dbde2a. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/JP92N2441187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345732f654dcb79d18588040e1da9c8b7da443354ad5c7f48a6ea3a3e1d222e8. 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/TCJPZ2489842.