Sister Mary Margaret
type: MusicGroup
popularity: 5
followers: 220
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8055974fcba73f7b96109bceda5afae6b55cae229d08e1415b3bdf73dba31100
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8087636f-c654-4ef4-b12d-a50b4ebd90fe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8087636f-c654-4ef4-b12d-a50b4ebd90fe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8087636f-c654-4ef4-b12d-a50b4ebd90fe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8055974fcba73f7b96109bceda5afae6b55cae229d08e1415b3bdf73dba31100","name":"Sister Mary Margaret","registered_at":"2026-06-17T10:22:28Z","symbol":"NIM1365549","token_address":"0x97577b7f19d94f38d240da3f7ebc86f2e21a4ffb","type":"artist","uuid":"8087636f-c654-4ef4-b12d-a50b4ebd90fe"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8055974fcba73f7b96109bceda5afae6b55cae229d08e1415b3bdf73dba31100. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8087636f-c654-4ef4-b12d-a50b4ebd90fe.json and https://artists.proofprofile.net/proofs/artist/8087636f-c654-4ef4-b12d-a50b4ebd90fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x8055974fcba73f7b96109bceda5afae6b55cae229d08e1415b3bdf73dba31100","name":"Sister Mary Margaret","registered_at":"2026-06-17T10:22:28Z","symbol":"NIM1365549","token_address":"0x97577b7f19d94f38d240da3f7ebc86f2e21a4ffb","type":"artist","uuid":"8087636f-c654-4ef4-b12d-a50b4ebd90fe"}
album: Chewed Fruit
  type: MusicAlbum
  date published: 2022-06-12
album: Two Moons
  type: MusicAlbum
  date published: 2024-08-16
  track: Two Moons
    type: MusicRecording
    duration: PT3M49S
    duration ms: 229718
    explicit: true
    by artist: Sister Mary Margaret
    in album: Two Moons
      type: MusicAlbum
      date published: 2024-08-16
    isrc code: QZTAU2451819
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T17:48:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa3a44ae6c62209c6473219e81c762543472e64544e26b184361f4aea959ae706
    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/QZTAU2451819
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a44ae6c62209c6473219e81c762543472e64544e26b184361f4aea959ae706. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAU2451819.
      date published: 2026-07-05T01:12:41Z
    audio: Two Moons
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 73.305
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.41
      additional property: Energy
        type: PropertyValue
        value: 0.264
      additional property: Speechiness
        type: PropertyValue
        value: 0.103
      additional property: Acousticness
        type: PropertyValue
        value: 0.952
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.235
      additional property: Liveness
        type: PropertyValue
        value: 0.112
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.1
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.468
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Zeus Freestyle
  type: MusicAlbum
  date published: 2024-09-28
album: Third Face
  type: MusicAlbum
  date published: 2024-12-13
album: Third Face
  type: MusicAlbum
  date published: 2024-12-13
album: Groundwork
  type: MusicAlbum
  date published: 2025-05-24
album: Proud Mary
  type: MusicAlbum
  date published: 2025-10-10