Mary Lou
type: MusicGroup
description: Mary Lou or Marylou may refer to: People Mary Lou (name), including list of persons with this given name Mary Lou (actress), American actress Mary Lou Kolbenschlag (born 1992) Films Mary Lou (192
popularity: 29
followers: 2264
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x20897ca1d9929c56999f5957f97c383aae175ecc9ec193d0d41176010e4d55ad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e44926d3-3761-41c9-889c-0efcf8e7a440.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e44926d3-3761-41c9-889c-0efcf8e7a440.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e44926d3-3761-41c9-889c-0efcf8e7a440
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x20897ca1d9929c56999f5957f97c383aae175ecc9ec193d0d41176010e4d55ad","name":"Mary Lou","registered_at":"2026-06-12T12:13:14Z","symbol":"NIM0294393","token_address":"0x07e14aad017e42ca7b766eca7079a1eae29a646a","type":"artist","uuid":"e44926d3-3761-41c9-889c-0efcf8e7a440"}
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 0x20897ca1d9929c56999f5957f97c383aae175ecc9ec193d0d41176010e4d55ad. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e44926d3-3761-41c9-889c-0efcf8e7a440.json and https://artists.proofprofile.net/proofs/artist/e44926d3-3761-41c9-889c-0efcf8e7a440.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x20897ca1d9929c56999f5957f97c383aae175ecc9ec193d0d41176010e4d55ad","name":"Mary Lou","registered_at":"2026-06-12T12:13:14Z","symbol":"NIM0294393","token_address":"0x07e14aad017e42ca7b766eca7079a1eae29a646a","type":"artist","uuid":"e44926d3-3761-41c9-889c-0efcf8e7a440"}
album: May Be April
  type: MusicAlbum
  date published: 2016-05-04
  track: A Bit Of
    type: MusicRecording
    duration: PT4M5S
    duration ms: 245840
    explicit: false
    by artist: Mary Lou
    in album: May Be April
      type: MusicAlbum
      date published: 2016-05-04
    isrc code: QMEU31603208
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T10:23:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x12c04ee770eaf0b97643e1a9cb4496172cfca0afbf857c4826222c220535bc66
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958544
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958544
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU31603208
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:14:37Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c04ee770eaf0b97643e1a9cb4496172cfca0afbf857c4826222c220535bc66. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMEU31603208.
      date published: 2026-07-18T12:14:37Z
    audio: A Bit Of
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 148.814
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.55
      additional property: Energy
        type: PropertyValue
        value: 0.455
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.453
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.441
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.619
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: May Be April
  type: MusicAlbum
  date published: 2016-05-04
album: After All
  type: MusicAlbum
  date published: 2020-11-20
album: After All
  type: MusicAlbum
  date published: 2020-11-20