is a feminine Japanese given name. Notable people with the name include: Ayasa (violinist) (born 1991), Japanese violinist , Japanese voice actress Fictional characters Ayasa Tachibana, a character i
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 0x05e1c99745890b3d314b15aacbc44ca945408c59fbcf21108780763972b51a1a. 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/ffc7ddbc-75af-498c-a35a-035de0f7e076.json and https://artists.proofprofile.net/proofs/artist/ffc7ddbc-75af-498c-a35a-035de0f7e076.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 0xa7b35192143a960b8a52f5ba7a29acc1ee8bc3f6d557b5bd801d100c54b413c1. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JPZ921510571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf189f79458156bb0737e603ef573b626dc97bbd0304164f64869dd9f9c2d42a4. 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/JPN901605040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb56e0832929abd20e3adc06db06cc22e640044b0f126d6ef2e75c8e77a3969. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/JPN901704540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69246c6c6f8a413564c7e88c83fb2fd0e9abc347226ccc6d39a2bf944284e0c. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/JPN901704520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b38106bbf64c52266a1b3984104e4e00080851109468cc85f9fe4165168ebf. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPT591910276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75180dcf844bbbec22f804bab7a7207cba4029294c6933b310d46b409ab7f6bc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPT591910272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d238202c21cadc0655be23de39b49e3e49645bff9f067f46e76572638d3903. 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/JPT591910274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f7eeb2bd0e4a570bceac53a99d5420db293d95a06b7f19a4f0e83435d88d64. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPT591910275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b38106bbf64c52266a1b3984104e4e00080851109468cc85f9fe4165168ebf. 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/JPT591910276.
Ayasa Special LIVE「Ayasa Theater + ANISONG COVER NIGHT」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdbabe8ba0972dfd7831c939aa2fa97e2350483d9e859286b1ec3058e67b721. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/JPR502146097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5f4b496e815241f20f10feafcff7fa6593f0b33846a7e9b60d3f75f3a421e9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPT592010508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5f4b496e815241f20f10feafcff7fa6593f0b33846a7e9b60d3f75f3a421e9. 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/JPT592010508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdcdab8efce8917b6c973b8f92e6e75b062e674a5b992060748c83afe9a66fb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/JPZ922503456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdcdab8efce8917b6c973b8f92e6e75b062e674a5b992060748c83afe9a66fb. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/JPZ922503456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8674c5bda7721424d5cbcf852254df3460c3f489dc05d688f7395c9c69403106. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPZ922503455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8674c5bda7721424d5cbcf852254df3460c3f489dc05d688f7395c9c69403106. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPZ922503455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9a9cf94da33d2ce7189193ed25f9742d2a2114625f2773b0d3f7a5a5c83f51. 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/JPZ922503457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c35849235b216a3d2bbda970dc73d22e9e3b9708b6c5b56451350bd00a0f123. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/JPU901802953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c35849235b216a3d2bbda970dc73d22e9e3b9708b6c5b56451350bd00a0f123. 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/JPU901802953.