Aki or AKI may refer to: Places Aki District, Hiroshima, a district in Hiroshima Prefecture Aki, Kōchi, a city in Kochi Prefecture Aki District, Kōchi, a district in Kochi Prefecture Aki, Ōita, a tow
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 0xb4908f6ba6c7cfa09c1cc9ae889fd029d9d9a4831254084272e5aebcbe7478fe. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/118101bb-d02d-472d-a15f-439cc14ec01c.json and https://artists.proofprofile.net/proofs/artist/118101bb-d02d-472d-a15f-439cc14ec01c.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 0x981727c95e3febd8300e64ff786731f1e13bc628ee48267b3cee53ed5aba60fe. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/JPW562003180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddf98c81b2d95e81fb0e595327f0f4c80c90233ff6d8ecc90626c57ef4fd6ac. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/JPW562109593.
そして、これからも泣き続ける場所 feat. aki
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f394ae04de7c338b6a38446d0f37ea3b388b9ba124efd97f2c3c144dd3dce99. 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/JPW562109597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa798c2e24b4c95516a0a51434c4c78bbe6c8bd501b8d4ae7041cbe1e9b0dc2c2. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/JPW562109199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418d42171a25c74ac75fe3e73304bcb7ba43b2a48a08f81045e0c72037861009. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/JPW562109204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eded732d0c4c3f3786b09255ca20e64bc07984f29e00520337ad9b9a154a8f1. 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/JPW562109205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94625fff28f7107e97ba73e0d00c73b522c576ee51b492850882f06a2f739b06. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/JPW562109210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5a9575dc8a375b40239173aa32d0d7f26860efc70395ac21dd7a9ba898031a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPW561905572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb93776ea14e52d34f0a4af6cc13603a5fcfed38c7cbd89b2eebb0a576ee2cc5. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/JPW561905576.
the otherside of Destiny -White Lotus feat. aki [2015 Remaster]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c739ea20357d4347f0b9aa45aedb92c33e2862b5a83be0217dd4ec9ee7bd01. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPW561905636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e75cce0ab877cb3cb8c1e64d09e3adbb24fb85dc7a8132d1f67859a57df9b4. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/JPW561905640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137ff4a3776578424194d1e7c7f25fa31051770f5936958c13eba70b70370d05. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/JPW561905643.
roundabout feat. aki/cold kiss/itori/nachi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec5d9d0044aee30b88d8eeb418cfa1f8013906f2fd42f11d0cee180f31110b0. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/JPW561905644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7818a8271a9cdfb937aa00a01fc551f1a27f66074c57cda9b90a6a42a18d208d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/JPW561905885.