Twin Cities Women's Choir
type: MusicGroup
genre: choral
popularity: 7
followers: 131
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3124dd21225894868c0a663b7f1102ace5a28798d7a78ca47e7b6baa1be17d4d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ace6d49f-848a-4a1b-9a9c-0de5085ea5a2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ace6d49f-848a-4a1b-9a9c-0de5085ea5a2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ace6d49f-848a-4a1b-9a9c-0de5085ea5a2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3124dd21225894868c0a663b7f1102ace5a28798d7a78ca47e7b6baa1be17d4d","name":"Twin Cities Women's Choir","registered_at":"2026-06-20T10:19:00Z","symbol":"NIM1590781","token_address":"0x2e33b293ed71e8c21bd64eb494022065251d847d","type":"artist","uuid":"ace6d49f-848a-4a1b-9a9c-0de5085ea5a2"}
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 0x3124dd21225894868c0a663b7f1102ace5a28798d7a78ca47e7b6baa1be17d4d. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ace6d49f-848a-4a1b-9a9c-0de5085ea5a2.json and https://artists.proofprofile.net/proofs/artist/ace6d49f-848a-4a1b-9a9c-0de5085ea5a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0x3124dd21225894868c0a663b7f1102ace5a28798d7a78ca47e7b6baa1be17d4d","name":"Twin Cities Women's Choir","registered_at":"2026-06-20T10:19:00Z","symbol":"NIM1590781","token_address":"0x2e33b293ed71e8c21bd64eb494022065251d847d","type":"artist","uuid":"ace6d49f-848a-4a1b-9a9c-0de5085ea5a2"}
album: Sing! Perform! Affirm!
  type: MusicAlbum
  date published: 2008-07-25
album: 10th Anniversary Live!
  type: MusicAlbum
  date published: 2008-07-29
album: Illuminations 2009
  type: MusicAlbum
  date published: 2010-02-12
album: 15th Anniversary
  type: MusicAlbum
  date published: 2013-07-01
  track: Will the Circle Be Unbroken
    type: MusicRecording
    duration: PT2M31S
    duration ms: 151293
    explicit: false
    by artist: Twin Cities Women's Choir
    in album: 15th Anniversary
      type: MusicAlbum
      date published: 2013-07-01
    genre: choral
    isrc code: USCGJ1410078
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T23:23:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf3f79c7eceff300c34002481a26a1a034d396d11a404a3e5b1ac60f864c62fc4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958631
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958631
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1410078
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T00:50:09Z
    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 0xf3f79c7eceff300c34002481a26a1a034d396d11a404a3e5b1ac60f864c62fc4. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USCGJ1410078.
      date published: 2026-07-19T00:50:09Z
    audio: Will the Circle Be Unbroken
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.192
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.482
      additional property: Energy
        type: PropertyValue
        value: 0.615
      additional property: Speechiness
        type: PropertyValue
        value: 0.074
      additional property: Acousticness
        type: PropertyValue
        value: 0.89
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.91
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.098
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.494
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major