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 0x2fb81b2cf5d1d9f50396747efa4a622fd9825a1a5a6be2ca6394b24fe369a979. 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/bf2ef729-6180-4f87-ad7c-0c0f61faacec.json and https://artists.proofprofile.net/proofs/artist/bf2ef729-6180-4f87-ad7c-0c0f61faacec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ミュージックレイン・オールスターMIX "バイブル" mixed by DJ和
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 0xc72d6f35c146d0bef45761e5b07897a1b466c4364c9d002d83757904637de5f3. 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/JPX402100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a52a0e0ca6931b0f8849214e1f7b076034981cff89a0a691f7e845d3662f338. 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/JPX401700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d7bab167feb5479450dd7183adbd1c03cfe87a1283d3a3748fa228abe546a2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPX401700009.
ハニワ10セレクション ～恋のキュンキュン編～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c0a05b0b3929f3a967898982bcef56af3fd690ea5e3cdb6eb3954eee81a7ae. 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/JPX401700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1148b0d615c2d80464ef1c1dafaaba8bf165d70cf73bc0425dac8fd31ab87d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPX402100184.
ハニワ10セレクション ～恋のはじまり編～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a52a0e0ca6931b0f8849214e1f7b076034981cff89a0a691f7e845d3662f338. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPX401700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d7bab167feb5479450dd7183adbd1c03cfe87a1283d3a3748fa228abe546a2. 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/JPX401700009.
ハニワ10セレクション ～恋のすごろく編～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b591c475179ec2ee78a9b056c1449a0feda7ebe577b677a21420a049a3fc08. 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/JPX402000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d224b6b07e5683bd7eebc11f2137962845cd17feeefaa89906241894a9be1e1. 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/JPX401400108.
ハニワ10セレクション ～恋のもやもや編～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6aae1d141bc824be9803104e2437e754da43fd077b71a7bc19db3716e4b5a4b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPX401900093.