1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x831e7d4892e98c5afab846d9d88f6e53ea6fa8615f3ba88efbcf44591975a0a1. 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/5df4c3f3-82bf-4aca-a3c0-09bb42eebf2b.json and https://artists.proofprofile.net/proofs/artist/5df4c3f3-82bf-4aca-a3c0-09bb42eebf2b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
THA DAYZ (feat. GDX, AK-69 a.k.a.Kalassy Nikoff, North Coast Bad Boyz)
MACK TOWN LIFE（マガッタジョイントRemix）(feat.1-KYU, S55 a.k.a SPOCK)
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 → block OTSBitcoinBlock must exist at that height 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 0x6ba455503cda2a2b49fd5f933e40768bf707b9173da9e1ee65fa3607107d1a41. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPJ901608630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e42430850bbe3622e1ca9d80c89a571705e124c0148196d5fe6184eac779b82. Chain 2 (Bitcoin): anchored in block 956970 (2026-07-07T00:37:51Z), 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/JPJ901608750.
WATCH YOUR STEPS～KILLA KIX ’75～feat．O，SUIKEN
マウエデテ マ★マ★スィータ feat．NORTH COAST BADYZ，DANI，LANDO
TACHIAGARE - FEAT 1 KYU & SPOCK FOR NCBB TAKESHI FOR
BABYLON - feat. SILVER BUCK, Shoutouted by JUNIOR for REDSPIDER
IN MY BED ROOM - feat. YOUNG DAIS for N.C.B.B.
DCT 97 - feat. AK-69, BIG RON, Kayzabro for DS455
Answering Machine of HOKT - voice:Kayzabro(DS455),AK-69,SPOCK(N.C.B.B) and more girls
DOPEST SOUNDS -from the NEIGHBORHOOD- - feat. Kayzabro, BIG RON, RICHEE, TWO-J, U-PAC, DJGO, RIDE RECO SOLDIER, SNAKE, ROWSHI
TOKYO TOKYO -18BLUES- - FEAT EL REY YAMAGUCHI RISA
RULE OF STREET - FEAT MC JINGI GUY ENIWANO SHUU N CB B
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9128461ff3c9e480ece38099669cac89d6f790fb1aecd348f54bd28ce78adb09. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:36:09Z), 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/JPH371200379.
If Today Was the Last day (feat. Jason Vasara)
NORTH COAST BAD BOYZ Presents DIRTY SQUAD #2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4206508bb90744ec1be57379fa6d35f2a2cf0779c38c6dfc5d648c821b494071. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPY200801764.
HIP HOP 4 Life (feat. HOKT, Kayzabro, BIG RON)
TAKE YOUR THERE feat. HOKT (FROM NORTH COAST BAD BOYZ), MATT CAB