Sacra
type: MusicGroup
genre: japanese indie
genre: j-rock
description: Sacra may refer to : Bibliotheca Sacra, the theological journal published by Dallas Theological Seminary Harmonia Sacra, a Mennonite shape note hymn and tune book Isola Sacra, an island in the Laz
popularity: 4
followers: 434
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0f5c9bb5247f17b6f99733381a21fc49103a8b20233eda421f1eb86599b36631
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b3d77e3f-3919-4318-90cb-280673aa2ef0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b3d77e3f-3919-4318-90cb-280673aa2ef0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b3d77e3f-3919-4318-90cb-280673aa2ef0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
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 0x0f5c9bb5247f17b6f99733381a21fc49103a8b20233eda421f1eb86599b36631. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3d77e3f-3919-4318-90cb-280673aa2ef0.json and https://artists.proofprofile.net/proofs/artist/b3d77e3f-3919-4318-90cb-280673aa2ef0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: don't look back
  type: MusicAlbum
  date published: 2006-11-22
album: 君の存在
  type: MusicAlbum
  date published: 2007-01-24
album: transit camp
  type: MusicAlbum
  date published: 2007-04-25
album: SCULPTOR
  type: MusicAlbum
  date published: 2012-10-10
album: SCULPTOR
  type: MusicAlbum
  date published: 2012-10-22
album: SCULPTOR II
  type: MusicAlbum
  date published: 2013-04-10
album: Good Time～笑った君が僕のすべて～
  type: MusicAlbum
  date published: 2014-03-12
  track: イエスタデイ～once more～
    type: MusicRecording
    duration: PT5M8S
    duration ms: 308760
    explicit: false
    by artist: Sacra
    in album: Good Time～笑った君が僕のすべて～
      type: MusicAlbum
      date published: 2014-03-12
    genre: japanese indie
    genre: j-rock
    isrc code: JPD731400120
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T22:24:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe128c98659024c0e5976104c833a5100fe2afd6f4fae4f9dc0c267e860ead5f6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958943
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958943
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD731400120
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T00:27:37Z
    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 0xe128c98659024c0e5976104c833a5100fe2afd6f4fae4f9dc0c267e860ead5f6. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/JPD731400120.
      date published: 2026-07-21T00:27:37Z
    audio: イエスタデイ～once more～
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.901
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.504
      additional property: Energy
        type: PropertyValue
        value: 0.501
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.465
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.087
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.427
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.828
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ruri Matsuri
  type: MusicAlbum
  date published: 2014-12-10
album: Просто Ты – Герой
  type: MusicAlbum
  date published: 2015-04-22
album: HUMAN
  type: MusicAlbum
  date published: 2015-11-22
album: HUMAN
  type: MusicAlbum
  date published: 2015-11-22
album: Calistenia
  type: MusicAlbum
  date published: 2016-10-27
album: イキ
  type: MusicAlbum
  date published: 2019-11-20
album: IKI
  type: MusicAlbum
  date published: 2019-11-20
album: Secular Legacy
  type: MusicAlbum
  date published: 2020-10-04
album: 永遠みたいな一瞬を
  type: MusicAlbum
  date published: 2025-10-10
album: Eternity in a Moment
  type: MusicAlbum
  date published: 2025-10-10
album: Seishun-Symphonia
  type: MusicAlbum
  date published: 2025-11-07