一二三, meaning "one, two, three", may refer to: Hifumi, Japanese given name and surname Ichi-ni-san, a local yaku in traditional Japanese card game Oicho-Kabu "One Two Three", a track in Chinese te
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 0x1db9250564832b6035628611ab7c3f9775cc0c0d22e5416a587bfab18b72745d. 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/0501932d-b512-4ec7-aa6c-7f1f47828e5d.json and https://artists.proofprofile.net/proofs/artist/0501932d-b512-4ec7-aa6c-7f1f47828e5d.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 0x120bd91bb01679f5ada178af275de391543cc3dd2b348dd8b97e515fef5883c6. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPS801850589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9280fdc140ffc0ffb6ec2c4e28f4bdb1929d7308e746a4e33ac5bc8832617971. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JPS801850592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e51001f73f043c45a84d4249cbe3fa9383c0e81f1cea872897351bd17e07b4e. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/JPS801850593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578d0a693091e4f44d9125a7275510b8cb3e103a1fb9c6a1772817c12dca5743. 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/JPS801850595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfef959c36c2ec716cc916c4f3b8c90ba87e56f96eee138e613aff50f6ef95dd. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/JPS801855927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fa5e1381c1970be82aac1a5f09810bac09b76527a1c8b395d62a85670e9d36. 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/JPS801855928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9eddc28888df58e5c729d421671cd07b3f00b261d5165d2386b687f2168436. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JPS801943338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4379a808bebca6a5fa0d5eeb28dba8c2175979d714fc0fce2991ca26385c4971. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/JPS801945529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a8ea674553df03dfe3d4fa9ecfee213bbb7208d6e74280cf5befbe0d3e0085. 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/JPP302101805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfda9d7ae31ec5e9b0cdd286f1d9b62c84b2c7bc7c4b5c75d85569ef1aa4d468. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPP302102037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0524e0255716aa96b0c5cda0ac846106f9fc8954550368e7713b6200de03baf. 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/JPC231800344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ba70dea3d2e21cb447ab729d7d8975bd13053652709af0137b0c12076cbcd2. 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/JPC232000085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecc80f01d45776209f8e22f0cfb85a18223358853c06271287a4c4bf71f1070. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPA652005178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa63c4fe09cfa8008e49ea79dad9a55570a06e83110ef5ed1d8ca0cca80cc809. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/JPC232000084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c038a6b20ddb0560a1d45b48bd8a1efc8e87894ebc1b7e8437b2d37357e090. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPP302200650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4a04e02b3db6098fb8d82a12fa3e7595ce8ad31b23f6b951132a661798e3d7. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/JPP302200775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a028a2730baa9a0a514211a503f820ef19b5ff3ff27b15c059fa7725352d2f7. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/JPR562300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822a8e884f37ec8b977e95d68ceb89106fa135d87bd88b012ca0e877d4c9289a. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/JPP302300526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf045a3b60e016eeb0c58fb1f2148f7cdd3ff7e662ea533fa048a0826a76491bd. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/JPP302300806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9976883358f269ca0cfff76f0af993e12fccd99d920d45b5f7de3ccd1519c4af. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JPP302400113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3f89fadc3edc3af99203cc9a2fbbdd73fbc59b4188decab2a193b10092bdcb. 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/JPP302400564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55415f0ecd27e0016b4970fdc11cf8f911e6f69b418654dc14d0ee9ff886dd9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPP302400740.
ひろがる世界へはこぶ風 (feat. 初音ミク)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa347def2c5900d116bb2095579d9e0638b247edae4faad838f4498b87a73ab82. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/JP92Q2501853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fb628fa61f797271603867a274063ba1714322cae186b9542b51f7f18c8e65. 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/JPZ922102744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4303d4aef713d204263c25354a2f79768121a87c4ca46787a8b3d5e0a7e60995. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/JPC232200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd46c9af628f75c680697629b42b761364ffe6cc5ce0f8116910f811f3340d5d. 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/JPC232200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ee630f80c1c38c9871cb4f6a7fdf1e596b1649f3b59e42e2e183cafb347ba2. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/JPY392200650.
音楽的同位体 星界 1st COMPILATION ALBUM メタファー (vol.2 異彩のメタファー)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4e678c893612618c15cb6d2be3a2aa86ba3339bc039864e3130b97d6912b29. 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/JPY392200446.
音楽的同位体 裏命 1st COMPILATION ALBUM パラノーマル (vol.2 玉響のパラノーマル)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c17a1be08bb05b333bebdff7537ea51017a02ff33e59505fb17712af3f8aa5c. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPY392200651.
音楽的同位体 狐子 COMPILATION ALBUM イノセンス (vol.2 爛漫のイノセンス)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea9c02adcaef9f382e261102fbade082a43e0f3a202d1538c77cee0372e6771. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/JPY392300892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a028a2730baa9a0a514211a503f820ef19b5ff3ff27b15c059fa7725352d2f7. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/JPR562300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71311f9e6e4da911e62131fc0e04930a1891d78437280eada1787b5622685c01. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPA652400020.