SAI ²Rium
type: MusicGroup
genre: c-pop
genre: j-pop
popularity: 7
followers: 813
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3d3331ee42a8326a00c392af591d0ac90fa2c2ca3b4dafa9d64378f19288e1b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954069
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954069
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a55c263-6f3f-445f-ae15-83a39a05ff0a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a55c263-6f3f-445f-ae15-83a39a05ff0a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a55c263-6f3f-445f-ae15-83a39a05ff0a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:30:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf3d3331ee42a8326a00c392af591d0ac90fa2c2ca3b4dafa9d64378f19288e1b","name":"SAI ²Rium","registered_at":"2026-06-17T08:18:09Z","symbol":"NIM1335893","token_address":"0x216bb9f75b02c68a90c68d701170e296fb72e98e","type":"artist","uuid":"7a55c263-6f3f-445f-ae15-83a39a05ff0a"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d3331ee42a8326a00c392af591d0ac90fa2c2ca3b4dafa9d64378f19288e1b. Chain 2 (Bitcoin): anchored in block 954069 (2026-06-17T08:30:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a55c263-6f3f-445f-ae15-83a39a05ff0a.json and https://artists.proofprofile.net/proofs/artist/7a55c263-6f3f-445f-ae15-83a39a05ff0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:30:25Z
  text: {"copyright_id":"0xf3d3331ee42a8326a00c392af591d0ac90fa2c2ca3b4dafa9d64378f19288e1b","name":"SAI ²Rium","registered_at":"2026-06-17T08:18:09Z","symbol":"NIM1335893","token_address":"0x216bb9f75b02c68a90c68d701170e296fb72e98e","type":"artist","uuid":"7a55c263-6f3f-445f-ae15-83a39a05ff0a"}
album: #My fav twintail
  type: MusicAlbum
  date published: 2022-08-05
album: #My fav ツインテール
  type: MusicAlbum
  date published: 2022-08-05
album: Live moment
  type: MusicAlbum
  date published: 2023-01-27
album: Horetaga make
  type: MusicAlbum
  date published: 2023-01-27
album: 惚れたが負け
  type: MusicAlbum
  date published: 2023-01-27
album: ときめきウォータープルーフ
  type: MusicAlbum
  date published: 2023-01-27
album: キミコエ
  type: MusicAlbum
  date published: 2023-01-27
album: First Love Story
  type: MusicAlbum
  date published: 2023-01-27
album: First Love Story
  type: MusicAlbum
  date published: 2023-01-27
album: またね
  type: MusicAlbum
  date published: 2023-01-27
album: Matane
  type: MusicAlbum
  date published: 2023-01-27
album: Kyoushitsu renai
  type: MusicAlbum
  date published: 2023-01-27
album: Tokimeki waterproof
  type: MusicAlbum
  date published: 2023-01-27
album: Kimikoe
  type: MusicAlbum
  date published: 2023-01-27
album: Live moment
  type: MusicAlbum
  date published: 2023-01-27
album: 教室恋愛
  type: MusicAlbum
  date published: 2023-01-27
album: GRANDPRIX
  type: MusicAlbum
  date published: 2023-07-11
album: GRANDPRIX
  type: MusicAlbum
  date published: 2023-07-11
album: だいすきループ
  type: MusicAlbum
  date published: 2023-07-13
album: Daisuki loop
  type: MusicAlbum
  date published: 2023-07-13
album: 推しのキミに恋をした
  type: MusicAlbum
  date published: 2024-01-12
album: Oitetta garasu no kutsu ha hirottemoraenai
  type: MusicAlbum
  date published: 2024-04-11
album: 置いてったガラスの靴は拾ってもらえない
  type: MusicAlbum
  date published: 2024-04-11
album: kaiwaimaikai BeAllright
  type: MusicAlbum
  date published: 2024-11-16
album: kimikoe (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-20
album: Live moment (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-20
album: oitettagarasunokutsuhahirottemoraenai (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-20
album: kaiwaimaikai BeAllright
  type: MusicAlbum
  date published: 2024-11-20
album: GRANDPRIX (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-20
album: ときめきウォータープルーフ (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-20
album: キミコエ (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-20
album: 界隈毎回BeAllright
  type: MusicAlbum
  date published: 2024-11-20
album: 置いてったガラスの靴は拾ってもらえない (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-20
album: tokimeki water-proof (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-20
album: Live moment (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-20
album: GRANDPRIX (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-20
album: #My fav ツインテール (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-21
album: horetagamake (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-21
album: #My fav twintail (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-21
album: 惚れたが負け (2024 ver.)
  type: MusicAlbum
  date published: 2024-11-21
album: だいすきループ (2024 ver.)
  type: MusicAlbum
  date published: 2024-12-11
album: First Love Story (2024 ver.)
  type: MusicAlbum
  date published: 2024-12-11
album: First Love Story (2024 ver.)
  type: MusicAlbum
  date published: 2024-12-11
album: Daisuki loop (2024 ver.)
  type: MusicAlbum
  date published: 2024-12-11
album: またね（2024 ver.）
  type: MusicAlbum
  date published: 2025-03-26
album: Matane
  type: MusicAlbum
  date published: 2025-03-26
album: Kyoushitsurennai (2024 ver.)
  type: MusicAlbum
  date published: 2025-03-26
album: 夏色コントラスト
  type: MusicAlbum
  date published: 2025-03-26
album: Natsuiro contrast
  type: MusicAlbum
  date published: 2025-03-26
album: 教室恋愛 (2024 ver.)
  type: MusicAlbum
  date published: 2025-03-26
album: オシカツ！
  type: MusicAlbum
  date published: 2025-04-16
  track: オシカツ！
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206413
    explicit: false
    by artist: SAI ²Rium
    in album: オシカツ！
      type: MusicAlbum
      date published: 2025-04-16
    genre: c-pop
    genre: j-pop
    isrc code: TCJPG2537825
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: オシカツ！
album: OshikaTsu!

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-20T01:44:37+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x302e1e47dc0ce9c41777a5d5d70f536f9521b5eaf7412f7b0d626857a0e9bb44

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958805

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958805

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPG2537825

OTSTimestamp
type: PropertyValue
value: 2026-07-20T02:22:58Z

OTSVerifyInstructions
type: PropertyValue
value: 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302e1e47dc0ce9c41777a5d5d70f536f9521b5eaf7412f7b0d626857a0e9bb44. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/TCJPG2537825.
date published: 2026-07-20T02:22:58Z

オシカツ！
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 91.999
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.583
additional property: Energy
  type: PropertyValue
  value: 0.997
additional property: Speechiness
  type: PropertyValue
  value: 0.094
additional property: Acousticness
  type: PropertyValue
  value: 0.083
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.294
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.856
additional property: Loudness (dB)
  type: PropertyValue
  value: -0.337
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Major

OshikaTsu!
type: MusicAlbum
date published: 2025-04-16