Rei
type: MusicGroup
description: Recreational Equipment, Inc., doing business as REI, is an American retail and outdoor recreation services corporation. It was formerly governed, and continues to brand itself, as a consumers' co-oper
popularity: 13
followers: 79
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd095f3e41e01d575d96a7a1aa4f730fc8cea1b11faf23d103980f01ba49b4107
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b2e6162-0fe8-42c5-a017-ea3af7400c56.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b2e6162-0fe8-42c5-a017-ea3af7400c56.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9b2e6162-0fe8-42c5-a017-ea3af7400c56
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
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 0xd095f3e41e01d575d96a7a1aa4f730fc8cea1b11faf23d103980f01ba49b4107. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b2e6162-0fe8-42c5-a017-ea3af7400c56.json and https://artists.proofprofile.net/proofs/artist/9b2e6162-0fe8-42c5-a017-ea3af7400c56.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T04:44:49Z
album: Like those days
  type: MusicAlbum
  date published: 2024-03-29
album: あの頃のように
  type: MusicAlbum
  date published: 2024-03-29
album: I WANT YOU
  type: MusicAlbum
  date published: 2024-04-20
album: I WANT YOU
  type: MusicAlbum
  date published: 2024-04-20
album: The dream I had that day
  type: MusicAlbum
  date published: 2024-08-03
album: あの日ボクが見た夢
  type: MusicAlbum
  date published: 2024-08-03
album: nonfiction
  type: MusicAlbum
  date published: 2024-12-05
  track: nonfiction
    type: MusicRecording
    duration: PT3M34S
    duration ms: 214000
    explicit: false
    by artist: Rei
    in album: nonfiction
      type: MusicAlbum
      date published: 2024-12-05
    isrc code: TCJPC2486441
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T20:40:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x97c5ccb3389c62cf3ce2ab11a763e30a56a36ea2b551cb594a8840697c080346
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2486441
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    additional property: 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c5ccb3389c62cf3ce2ab11a763e30a56a36ea2b551cb594a8840697c080346. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2486441 — a six-check JSON result.
      date published: 2026-07-05T01:12:41Z
    audio: nonfiction
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.009
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.724
      additional property: Energy
        type: PropertyValue
        value: 0.626
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.142
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.809
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.564
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.256
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: nonfiction
  type: MusicAlbum
  date published: 2024-12-05
album: トラウマ (feat. 優憲)
  type: MusicAlbum
  date published: 2025-05-28
album: torauma (feat. yuukenn)
  type: MusicAlbum
  date published: 2025-05-28
album: 夢見少女
  type: MusicAlbum
  date published: 2025-08-06
album: KIMINATSU
  type: MusicAlbum
  date published: 2025-09-17
album: KIMINATSU
  type: MusicAlbum
  date published: 2025-09-17