Capi or CAPI may refer to: Computing Common Application Programmer's Interface, LispWorks Common Lisp GUI toolkit Common ISDN Application Programming Interface, Common ISDN API Computer-assisted
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 0x9b2d2e671a29c5d5aa27a5c15fa50797ccde375887d945a20db76378d27d83f5. 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/922a7b80-0069-4635-a93c-82c7dcb84b5b.json and https://artists.proofprofile.net/proofs/artist/922a7b80-0069-4635-a93c-82c7dcb84b5b.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 0x0dd0464196baceb82dc68c7da21cb5ab595004a8c5b263d14a8cfacf22473015. 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/TCJPB2400060.
Kawaikutegomen - picco & Nakamura Sanso Remix
Kawaikutegomen (picco & Nakamura Sanso Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b6cb56f6dcb20fa8be4a063a3d67d54b6bed3e1604b2b370d8c668b1e7917f. 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/TCJPA2499620.
Kokuhakujikkouiinkai -FLYING SONGS- Koishiteru
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fae096e7a0cf16af33e7984fbae11a869333683b47a6bd191c83222619ba83c. 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/TCJPS2265902.
Kokuhakujikkouiinkai -FLYING SONGS- Aishiteru
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1b27cb5910dc81b02c329e6eab13c6bd63f8a503c6ea8c57b9691766ec44bd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCJPO2127499.
Romantic wedding (feat. Hanon, Kotoha & capi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe398374a7f522e9ce3865f932cce38abd8ea6baf5b312dc689aa4ef081319e87. 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/TCJPO2127508.
Konyakusensou (feat. Hanon, Kotoha & capi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c6623561c3af9e2a318afadb9aec7129d5856154d8b82423142ef38199c1be. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCJPN2024101.