Sara may refer to: People A Sara Aagesen, Spanish chemical engineer Sara Ibrahim Abdelgalil, Sudanese doctor and activist Sara Aboobacker (1936–2023), Indian writer and translator Sara Addington, c
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 0x3ab5b02e178475eb603b8b59bb68a8e595f7380a9a3b975022715f455a384991. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f20e2e3-c1df-46bf-b614-cb1a6a3f38ee.json and https://artists.proofprofile.net/proofs/artist/7f20e2e3-c1df-46bf-b614-cb1a6a3f38ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sara #1 ～HANEDA INTERNATIONAL ANIME MUSIC FESTIVAL Presents～
Sara #1 -Haneda International Anime Music Festival Presents-
Sara #2 -Haneda International Anime Music Festival Presents-
Sara #2 ～HANEDA INTERNATIONAL ANIME MUSIC FESTIVAL Presents～
Sara #3 ～HANEDA INTERNATIONAL ANIME MUSIC FESTIVAL Presents～
Sara #3 -Haneda International Anime Music Festival Presents-
Sara #4 ～HANEDA INTERNATIONAL ANIME MUSIC FESTIVAL Presents～
Sara #4 -Haneda International Anime Music Festival Presents-
Sara #5 -Haneda International Anime Music Festival Presents-
Sara #6 -Haneda International Anime Music Festival Presents-
Sara #6 ～HANEDA INTERNATIONAL ANIME MUSIC FESTIVAL Presents～
Sara #7 -Haneda International Anime Music Festival Presents-
Sara #9 ～HANEDA INTERNATIONAL MUSIC FESTIVAL Presents～
Sara #9 -Haneda International Music Festival Presents-
Ramu No Lovesong - YukoMatsutani - From anime "UruseiYatsura"
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 0x620884c1ddb13aae5bf3ceedfb9ba7d2eb1e3e0b03798de3dd8eeb0faeac8ad1. 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/JPN821007098.
Sara #8 -Haneda International Music Festival Presents-
Sara #8 ～HANEDA INTERNATIONAL MUSIC FESTIVAL Presents～
Sara #10 ～HANEDA INTERNATIONAL MUSIC FESTIVAL Presents～
Sara #10 -Haneda International Music Festival Presents-
Sara #11 ～HANEDA INTERNATIONAL MUSIC FESTIVAL Presents～
Sara #11 -Haneda International Music Festival Presents-
Sara #12 ～HANEDA INTERNATIONAL MUSIC FESTIVAL Presents～
Sara #12 -Haneda International Music Festival Presents-
Sara #13 -Haneda International Music Festival Presents-
Sara #13 ～HANEDA INTERNATIONAL MUSIC FESTIVAL Presents～
Sara #14 ～HANEDA INTERNATIONAL MUSIC FESTIVAL Presents～
Sara #15 -Haneda International Music Festival Presents-
Sara #15 ～HANEDA INTERNATIONAL MUSIC FESTIVAL Presents～
Sara #16 ～HANEDA INTERNATIONAL MUSIC FESTIVAL Presents～
Sara #16 -Haneda International Music Festival Presents-