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 0x3da655d4621082cbabcc58e25ce596dbf819ab01f2e6af7bf7df4102c8f93176. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b51a82ff-908c-429e-99be-d174e1c79bf7.json and https://artists.proofprofile.net/proofs/artist/b51a82ff-908c-429e-99be-d174e1c79bf7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We shine ourselves with HIPHOP (feat. Not)
Mellow (feat. Shunské G & SNG) [SNG REMIX]
That's Entertainment Show (feat. TiA & Not)
D.LEAGUE 20 -21 SEASON - ROUND SELECTION - ROUND.10
Keep It Rollin’ (feat. Shunské G & 宮﨑志音)
Keep It Rollin' (feat. Shunské G & Shion Miyazaki)
Join Us! (feat. Nezumi Coo & yuma yamaguchi)
Insane"BLUE" (feat. week dudus & MADLEMON)
Insane“BLUE” (feat. week dudus & MADLEMON)
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 0xe036a324843fed5bfa019378643c955b473bc82ecbb0c51e7f9167a0d8a6223d. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPX972306000.
ZONE (feat. yuma yamaguchi & Seiya Onasaka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe036a324843fed5bfa019378643c955b473bc82ecbb0c51e7f9167a0d8a6223d. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/JPX972306000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe036a324843fed5bfa019378643c955b473bc82ecbb0c51e7f9167a0d8a6223d. 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/JPX972306000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbadf4e7c31cb57ec8cce24faec780359e876ff11392e7ea30c69a0c1fba47c. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/JPX972306003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041eedea616bb741f67fe6f1ea64f03a5cd07f021dd5ad1e5926c3fe611dfddd. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/JPX972306004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2ec24ebf16b877d71fbaf60c9f7268040a7d7f5b62698f03d980884e32c608. 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/JPX972406001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2ec24ebf16b877d71fbaf60c9f7268040a7d7f5b62698f03d980884e32c608. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPX972406001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4266f69f63f204d9c6ad5dd6c11f91dfae4b3a7b69cf09826625cec21e2b53. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/JPX972406004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195da092a85c8fbe3ad1029f0f30f11f550e5d5146ef1fbfc7d4eb6915c2c4f6. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPX972406009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8421dc779a3e82207503d390d50b5d679242cb9197803ba09d918b8f0199f96e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPX972406011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcccccd6e06d6ebf78901169bf38d192437ab2d2165313d396cfda5ca16b7872. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/JPX972406012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86dc3a322388a02009a39cca6001b19443957cbda4b330585507c2dca923b82e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/JPX972406014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7ff3bd88dcbd1a89f37d85690408c977988aab5bfa6c33cd0fc9bdca276349. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPX972406015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7ff3bd88dcbd1a89f37d85690408c977988aab5bfa6c33cd0fc9bdca276349. 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/JPX972406015.