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 0x63f77918dfd8c9dae1593f915fd529ab53e7eb8b09f71d76e021c4a25549dd01. 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/33ff2f5f-67e6-4907-bb77-e6e3231bdc9b.json and https://artists.proofprofile.net/proofs/artist/33ff2f5f-67e6-4907-bb77-e6e3231bdc9b.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 0x3a20eda319d819ff7c2114fd58b96fe1412477991f0506c97b4d26816cbe1ce9. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/JPU900802461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896dcf60db2034656c9256bdc32f5e8945d900495dadee720ec1fe6d851c358a. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/JPU900802463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1a8447f6d92001755fe7c13ed16c98b2c95e92d565b0a6057a9f316f830ccb. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPU900900221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6088b47bfcbab38a7ac87a71888f6cc0801f8e1f19ab7a5b2d9349be8bee62b5. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPU900900222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3922fd9c80e3017c13583336e13a2e763049b61b86e5c44cff15fa1d54bd83. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPU900802462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88c52bb7354c3fc795e8b61180dbc909405b13c831cbbd49421c6d6d9877ebb. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/JPU900900226.
Diggy-MO' Live Tour 2009 “WHO THE Fxxx IS JUVE?”＋ Remixies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa493538912f0b7b4b36485bddf7ce3eab5864df06a26530fcbd6de29cf9b20da. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPU901000701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534ddd0fb20db75ba1964c3fc5aebe6f46152e8b948a26a34ff219295a1f053c. 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/JPU900900941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082c974cc8379066c4d0261ba2781be49b878f255bafd27f2c7380366fad313b. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/JPU900900861.
DX - 10th Anniversary All This Time 2008-2018 -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0792ba31834987035d75737d0494970c0bc05847070c61e8a7dde09549983e9d. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPU900802841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cf692e4f362eff9d7611c91426cfa51a72e8a512fa99a5e761cc2037e3a136. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPJ901702510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd66e58ea0df515fe13588c35e3d54dc6565edf797898293738dd4dc10744d7b. 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/JPJ901702520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3594561b4f2a9d466fa86c6edac083aa58f987bc64b31fb9a33948a542c0044b. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/JPJ901702540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f492b28ef25b25d9899ef3069e169d767309fdbc43d1949b55b4cc2aabdaac. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:23:51Z), 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/JPP301800654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddc7d6507719ee14421c9839e390cb72fd7a76de77633c955a7b4a5ad6b1dc2. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPJ901702600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3df133ed577f14df03dd0b4a82705e1aa20c8628726848708fc201fe179dd2. 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/JPZ921501622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a20eda319d819ff7c2114fd58b96fe1412477991f0506c97b4d26816cbe1ce9. 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/JPU900802461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c6ebefbf4d6c3dfe982419a63b3a716a39b47a58b254d2a59e00aa707342a7. 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/JPB600539708.
3/6にm-flo loves復活&新曲"tell me tell me" リリース!3名の新lovesは誰か#mfloと#lovesで回答募集!まずは豪華41曲のlovesをチェックしてねアルバム
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316345754e0ded2a67130b82445e480587994fdec2682ad46fdf9c42a7e880d6. 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/JPB600593418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530896e587efcbb520182d2e445df0bd9224f187ea3d0de3ca338227e9383c68. 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/JPB600501501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c6ebefbf4d6c3dfe982419a63b3a716a39b47a58b254d2a59e00aa707342a7. 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/JPB600539708.