thumb|The official Rin' logo, as a whole, depicts its name in the Chinese character(Kanji) 凜, simultaneously in the bottom right corner, its name is concealed in English. Rin' is an all-female Japanes
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 0x6e22ffcec902d10920c6247627e6cc73a374556e90b1af70617bda7022bef034. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b4e9933-8b7b-401f-974d-718d7a0171f4.json and https://artists.proofprofile.net/proofs/artist/4b4e9933-8b7b-401f-974d-718d7a0171f4.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 0x9e4480e6a4d7ab653357f358725cedb9745c5e9ccc0f9333e699610e03009ba7. 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/JPB600462208.
劇場版 「仮面ライダー響鬼と7人の戦鬼」主題歌 Flashback
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0193048e8156fc1dfa46d8f3d48b0a04a66995c14bacb55fb80c4e3f483189. 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/JPB600539901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2ebba604e23beddef793730273b510988fc7c8d78d765283b2f04992eb8b14. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPB600539902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623902fdaccab5e6f550eb41ea2be6877a800ec74d0c2acf85d890a729d4c966. 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/JPB600539903.
Flashback - RIDER CHIPS version Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5cdd1626e382ad4115722c94d58cfb3f18f7091e99cd65352b574c9434bb09. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/JPB600539004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6fea92999c9e6d78b436d18d30f1f56dfe5041b2b5edb7b7b54f4230a44ff6. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/JPB600762103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490cd9eb6b16e9e23b5ded9c50ad8c62211279874f2eba10c9fcd16335deb972. 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/JPE561200362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbe1887872f1eba88bf422da04fb288d79fdf733019ea97f687ca57aafdad8e. 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/JPTO00800558.