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 0xdbe02c63ec3900ff138b1f82c5699613fb7ef86cb40fb9b2204dc1a3a77e3ac9. 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/01a2a396-bd90-45ce-8b1d-5688c9da5eb1.json and https://artists.proofprofile.net/proofs/artist/01a2a396-bd90-45ce-8b1d-5688c9da5eb1.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 → 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 0x9c30a2c5b55de601315112fe925a3d16b320eb505a083156d723c4b09a3143b1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPJ902007720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2330e2787ba992d91d99db8bdb1bcafc3689aec4e46c0970cb868fe1f66be0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPB600840705.
キングサイズ草野球団のテーマ/NG HEAD,KENTY GROSS,VADER,ARM STRONG,CHEHON&DINOSAUR
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe257d7678840dfa70c06ef7081b4ac9a3381c846dae0201fc3bd97f8fe8d3d09. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPPC01101585.
Peace of World feat.CHOZEN LEE from FIRE BALL
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49eda5705a630cd13a65c37d745f6667b1109b379c9364aa7dc9e7e1abb2e711. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPM551500093.
CYAAN STOP DANCEHALL (feat. ONGYA) -Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd690496a83f0eab25d193e550988505509571ad66ac3b90f1dcc1b9b60b1c40b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPJ901802100.
ずっとスパイシーチョコレート！～BEST OF 渋谷 RAGGA SWEET COLLECTION
「生きる」っていうことは「生きろ」っていうこと
Catch Your Dream feat. NG HEAD, 若旦那, SAY & 桑野信義
DON'T FORGET!! (Remix) feat. SHINGO★西成, DABO, BES, SIMON, JAGGLA & NG HEAD
3 THE HARDWAY DUB (feat. TAK-Z, NG HEAD & PEQUU)
SPECIAL COMBO DUB (feat. RUDEBWOY FACE, KENTY GROSS & NG HEAD)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a355e639887702233c9a20f329cf4baa982f60cb6f3743bcd0d81bd1d5729c. 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/JPJ901615960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd188299c664e3435621e910b0be80843d3f3c814d757a222f26b11e82b64833. 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/JPY201405501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3c8acb33dda7e5bc9f0e1681425b40c365bcff1296dd4b5289b780344f2c9e. 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/JPTO01300658.