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 0xa3e23d9cd75a8a88441bebfb20290b783d26bfb8e75f08800243fb7d6d6d4bcf. 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/1830133a-e23b-4756-94ec-38ae4c9e6e99.json and https://artists.proofprofile.net/proofs/artist/1830133a-e23b-4756-94ec-38ae4c9e6e99.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 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 0x745ff153235d98c44bc2fd3d074ccb381ee386c9723e64044f05abb0cd4b5bf4. 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/JPES00402081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026a3bd578b75e42d58707cd49e2cee405b5ce60294bdee80094d8f123f5bddc. 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/JPES00500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5831eb115b5c5da52cf56e8ed2e23729e6870040f63eee8883e4c5133a1b6553. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/JPES00500203.
KATTENI-SHIYAGARE BEST SILVER & GOLD ～ GOLD 2004-2010
バー・フライズ・ストンプ/マスカレード
KATTENI-SHIYAGARE BEST SILVER & GOLD 〜 GOLD 2004-2010
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd92e6f2bb89dccf663e5cf97bd8add492a44aed5cf59655481538b9c92813bf. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPES00601623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480fac102a866a8f588cde8c83c582edb72b96bc9cef08f1e159a7acab915907. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/JPES00400162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5831eb115b5c5da52cf56e8ed2e23729e6870040f63eee8883e4c5133a1b6553. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPES00500203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67751b36afd7c229fe88a5b55a5b0e6d1e73deb1743374f794e65927a913cec8. 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/JPES00601627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad68b7e76d519ebac63b3bc4afec0215dc6443fdac2b685d62c5884ba1829f5. 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/JPES00501461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e705253e994d7298278a876f84579177cea257d8c646bf5ad37ab7aed40381. 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/JPES00400165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbd47a302d6c654b37e7d53095b6062b2c42f879d6209f833f5ea75970cef95. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/JPES00700542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026a3bd578b75e42d58707cd49e2cee405b5ce60294bdee80094d8f123f5bddc. 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/JPES00500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0b32b1e6c5cf83b2a950c1047cdb668c07aacbefecc1b163689921a5167aa7. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/JPES00601622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f9d4fc45a3551d9d6a3c4f9b4b0463dc69f6dad1db409c314aae424bc50346. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPES00400163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a74b8c40f3451821e17c4e09135daa205a2eada64b413175479ba133c046354. 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/JPES00500205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb582227eff6b8a8b124df948d233edeec0021264761c6edc52397d025370059c. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPES00600401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353d70695d762afef5d6a0dd9d8621ca527864e12d85011b9648849735852080. 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/JPES00400361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b00ece26868d584e3b723d977caf077fdfe3c56a9b21c5c46a68fae0dee4eda. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/JPES00501501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7c95eb95d4968e1231af17ea9eb63ba06abdb7047b2bb7ff8b5b49d6ca14e3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPES00501821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd423ffc2e60c3319dad7c84c80e7568b04a3b2bea49792f4cd2729167c745b3a. 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/JPES00600405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1037f6d8d9ea6bf43ee96146b4997b7f8839a877405019005a9d43cf08e7d2. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/JPES00601061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80612ccbfc593ed54dbf76d45b42b0bd33511f1bcf42dd0e2f5d7e660d9b0152. 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/JPES00601521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b73539c45e55d3538f4e400fa482ae076f4f5f5feee59c9bc5690135de6b6ec. 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/JPN300700801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae08c606c18cb98661a9970c89ed6e04dfc2a2d4540f1627e0f3efc62e265fe. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPES00600402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fede8890e4953555023ca5e860be066375c1cf23e5321396b9bad036e3fc175. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPES00601522.
ブラック・マジック・ヴードゥー・カフェ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fcb432f167179e663852414a9e3ae3f1b618badd99ba80be82401802d3bfe4. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/JPES00601621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd92e6f2bb89dccf663e5cf97bd8add492a44aed5cf59655481538b9c92813bf. 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/JPES00601623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ad996a8f1e098d4aa6c88025790560811a64f710f9308617cd9f5a74a5819c. 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/JPES00601624.
U-K-3 / Is You Is or Is You Ain't My Baby?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aca760c7c9307b9faf3b70105ffa722c0fe5a15d6a19ab08d2bc5b8f88019aa. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JPB600847901.
「勝手 at 九段」～2008.12.11 you don't know what "LIFE IS..." at 九段会館大ホール～
奥野真哉(ソウル・フラワー・ユニオン)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5b445fc20d0083855b93f389f51a739ff68d4b31d8497d719a41b2e224cfe2. 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/JPTE01906750.