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 0xa3e23d9cd75a8a88441bebfb20290b783d26bfb8e75f08800243fb7d6d6d4bcf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026a3bd578b75e42d58707cd49e2cee405b5ce60294bdee80094d8f123f5bddc. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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.
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 0x67751b36afd7c229fe88a5b55a5b0e6d1e73deb1743374f794e65927a913cec8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 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/JPES00501461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e705253e994d7298278a876f84579177cea257d8c646bf5ad37ab7aed40381. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 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 0x353d70695d762afef5d6a0dd9d8621ca527864e12d85011b9648849735852080. 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/JPES00400361.
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 956312 (2026-07-02T05:09:12Z), 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/JPN300700801.
ブラック・マジック・ヴードゥー・カフェ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd92e6f2bb89dccf663e5cf97bd8add492a44aed5cf59655481538b9c92813bf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 957145 (2026-07-08T08:56:20Z), 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 (2026-07-20T05:23:00Z), 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.