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 0xbedc0e41b98d436ba0e8b6a76f36cb3b59f5ac90340092be228103471a9c0678. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d98f8272-8ad9-4fdc-a196-a0e976f7db94.json and https://artists.proofprofile.net/proofs/artist/d98f8272-8ad9-4fdc-a196-a0e976f7db94.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d78023308e3dc3954e9f59fafbc8d6ca0aa4c34a5b98fd396e57562fd2b0dbf. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:43:47Z), 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/JP92L2307300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da6eafa4fc05f6ac5e4cd38df3b217909cdab6fd389de3cfcbda7679fc28209. 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/JPV502100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb38902fb803576790bc02dad65b2ab3767de1f42e82397c66d66169e4ee29f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPV502100431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ba07e60c404986d4fce6b09ca6d58655a7eca1ac35b4efa6a423b4ca274e3e. 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/JPV501600456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7027963d292b03546c6ca3329a848340bc555a10c0e37eb6b392458b1c2b80a7. 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/JPV502100405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7027963d292b03546c6ca3329a848340bc555a10c0e37eb6b392458b1c2b80a7. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/JPV502100405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb527eecb9a612d3e51b5a2bc9850bc957c77fa5cf3566414937219cccaffe343. 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/JPPO02401153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754821884882acd796c3799aceed6d14412df2484092fa644a9b0f3e436f532a. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/JPV501800480.
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 0x30537481562b7c3f73536bde27b9a0b7b677a8370f949046490122117518fd35. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/JPV502100432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d774892634ab8891fc85084dc061951c1a54a10edce5eb6735553a154d421d. 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/JPV501600457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313c21c843f1bf53c8ea8888fcf610bc873ba8a7fcb931fb98987818e85dba40. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/JPV501800481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba33de8fcf68d2c914bb471cc2cd53420736f890a3a53a3cee9619e3e64a0d38. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPV502100434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d88b3c2172038f6af3594f6dbab90c4eedd82ba2508a28ac64bcbaa6f68c070. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPV502100100.
Summer Crazy Days - XTAL & KEITA SANO Daze Haze Maze Remix
Summer Crazy Days c/w A MOMENT OF SILENCE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c380be79c6538fab86c33e5dc11e6679e196c3a6c13e8c32e79a58b0644cbb. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JPV502400441.