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 0x2943e0627a6780cc6947ea821050a29aeb6fc3d60d7c26d85cbfd043d16a349e. 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/05416fc8-6b64-4192-8e68-4a7a4b4b1a79.json and https://artists.proofprofile.net/proofs/artist/05416fc8-6b64-4192-8e68-4a7a4b4b1a79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
DIABOLIK LOVERS Bloody Songs -SUPER BEST-
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 0x6846adfd46275af1a89872acfa376ea46429304d5cbb31bc720ec5a4f1f2a2bc. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/JPR501511393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef177bfdb2531bf2ac67c16a0216e069de6592ee6030a5620b6d4d7e5ebc2255. 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/JPR501511395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63858b79118e3fb7dbc197435f38e04422ce3c726afb8daaae980b7d29186d1. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/JPR501511396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a17e8226f01689d16dbcef22994e3b6aa30d7eea703c1830f60e2c77acac0b. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/JPR501511397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b6fbe3e88e512a5bc43333ce47d8f4495d35499f8492d93f22157183588f1b. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/JPR501511398.
DIABOLIK LOVERS 「真夜中の饗宴(MIDNIGHT PLEASURE)」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7e4d945fd1509eb1aa867c520bef3cf97b4969a67dddcf0c4e448a9ce65d62. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/JPZ921210607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe348d14bd4a35b6a24251086ff5d0d6d3b86a9e8d75ea6649d1943bf455b89. 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/JPZ921210608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155fa71878d9812fdb9ffb3ba1802ab166a720b51e5344e49659b6944425677a. 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/JPZ921210609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc227278bb8e0321bebf76b9116b53c14dde5cfae45c10c6052b03f47361d2b37. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPZ921210611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baf36518a90d4a9d5854bc598d82f1587f36d6d882a87c960bea7eabb297bfc. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/JPZ921210610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbd1607ef63eefbcf427d37643be25ba7d666fb34cad51283fd4fbfa03f3e65. 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/JPZ921210612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7e4d945fd1509eb1aa867c520bef3cf97b4969a67dddcf0c4e448a9ce65d62. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T05:07:11Z), 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/JPZ921210607.
DIABOLIK LOVERS キャラクターソング (vol.1 逆巻アヤト CV.緑川光)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129f3a59c419444bc93e5af4e35e03fde645d5c3261e39a86b23d39caa03f0c4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPZ921305550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa066801e685b7fca297189287cac49b0704643e40d3f3f94a255154fa00efac8. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/JPR501511387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f61e4d279294a8853f6beb9f3ade7b8b2fbed7eb578b17cebeb5fd92d09e7b9. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/JPR501511388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7949d7ae70f7cbdbeb0261eb100c00319705608cd6a1302c07e07ca2716eafa. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPR501511389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafadafc77103be85bbc99811178526d8b3e336ce07873bc286fd83c0b69551f. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/JPR501511390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a5ec49f3915e32246245c1b38519dc6c26c167310d6a87c04659a74f96823a. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/JPR501511391.
とある預言者の、運命(シックザール)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e86b62834d2c4636eb3e6bc4607f40f439ca2343accbf2f3a42c6ff3409c893. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPR501511392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f9e04592e62caa13e499969a18563b5a527acc7c600e0a7fce57af04658538. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPR501511394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef177bfdb2531bf2ac67c16a0216e069de6592ee6030a5620b6d4d7e5ebc2255. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPR501511395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63858b79118e3fb7dbc197435f38e04422ce3c726afb8daaae980b7d29186d1. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/JPR501511396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a17e8226f01689d16dbcef22994e3b6aa30d7eea703c1830f60e2c77acac0b. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/JPR501511397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b6fbe3e88e512a5bc43333ce47d8f4495d35499f8492d93f22157183588f1b. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPR501511398.
DIABOLIK LOVERS MORE CHARACTER SONG [Vol.1 逆巻アヤト(cv.緑川光)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c86bf5cba80647aa51f8f4179c4aff0a91f46152116b631547920fbd6513a52. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/JPR501511402.
DIABOLIK LOVERS VANDEAD CARNIVAL「吸愛ラビリンス」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cbbad1dba1d6bffa21f02d35b996ae2847820ee74f7d5364b0be95294511fb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPR501511408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4726d529e107216e87ef951478b7679d6de781466000ca5ea88e00bd161566fc. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/JPR501511409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cbbad1dba1d6bffa21f02d35b996ae2847820ee74f7d5364b0be95294511fb. 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/JPR501511408.
DIABOLIK LOVERS VERSUS SONG Requiem(2)Bloody Night [Vol.I アヤトVSスバル]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed8534075dc137709544e19d0ebe50fdf8257c133aae5d77d8eff318bea50cf. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/JPR501514068.