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 0x8fb0c829d3cd0612e6713869350732eb83b2177e69d422518654a445ab0e0490. 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/f1ef6742-79aa-4d48-86d6-61ed4e97d621.json and https://artists.proofprofile.net/proofs/artist/f1ef6742-79aa-4d48-86d6-61ed4e97d621.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 0x607621cd5c21692e6583b649ab6687cce02f4cbd4abdbb8f4cb077518c14b9db. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/TCJPG1727356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6c5571fe420693362c17c81411aee63a286278e365490a158324d5833c7b8a. 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/TCJPG1727358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3c3000ab4ef7d361fd2c7ad6ad5a761921829e20b706ce9cec05e8c4c06af8. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TCJPE1652093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b31e12234e3ed0d216c2896eac739cc75fe1c6bb34a6b882d7e031f55984726. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/TCJPE1657111.
We Rich (feat. G-k.i.d, Yellow Pato, Kaneee & KOWICHI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37bb31e19ac0b08aaa954fae6014458d5b441a200ac05e488f14721650d00f5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP02400347.
Championship (feat. G-k.i.d, MC TYSON & KOWICHI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b51c61461de0b38a14fd96a64a231320f9c5f81ae8162051e222f2d4e0e17b6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCJPN2184459.
At The Party (REMIX) feat. JOYSTICKK, DJ☆GO, KOWICHI, Ms. OOJA [Non Stop Mix Ver.]
LocoHAMA CRUISING DJ PMX THE GREATEST HITS MIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f503bd215dacc91a6e944511d774250e16a76c5d9ddffddd498fe749a30952c. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/JPVI01404320.
My Beauty Queen feat. JOYSTICKK, KOWICHI, ZANG HAOZI, JAY'ED [Non Stop Mix Ver.]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236d6969758205ff05a74a2ea3352c1a3d8754e78ceeacaa05d11099eb22b1a2. 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/JPVI01404330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15782c51545dffd44bf08ec11605c2686ce2fc70f12d69238614238f609557f5. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/TCJPX2345400.
Don't need you feat. KOWICHI (DJ FILLMORE Mix Ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b27d9832e17d207e194b5464cb14cfe4a6148cd442fb3e92105a25d462e3ad. 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/JPY201505816.
No Side Bitch (feat. KOWICHI & ZOT on the WAVE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7fee8e2e312980f0d483d003a18775317265589ee333395054d695593860ad. 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/TCJPG1881806.