Hannah & Maggie
type: MusicGroup
popularity: 9
followers: 1969
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1cfd18ecb6828921e8e2954f7623c056c3b0edd592d1a0fb6577d96692114e32
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e259c0fe-34f5-4d9e-8aac-258a9a915b55.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e259c0fe-34f5-4d9e-8aac-258a9a915b55.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e259c0fe-34f5-4d9e-8aac-258a9a915b55
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1cfd18ecb6828921e8e2954f7623c056c3b0edd592d1a0fb6577d96692114e32","name":"Hannah & Maggie","registered_at":"2026-06-21T07:21:23Z","symbol":"NIM1856935","token_address":"0x5a3494cfaa973d525baeb9f0c09decc92ec0f2f8","type":"artist","uuid":"e259c0fe-34f5-4d9e-8aac-258a9a915b55"}
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 0x1cfd18ecb6828921e8e2954f7623c056c3b0edd592d1a0fb6577d96692114e32. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e259c0fe-34f5-4d9e-8aac-258a9a915b55.json and https://artists.proofprofile.net/proofs/artist/e259c0fe-34f5-4d9e-8aac-258a9a915b55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0x1cfd18ecb6828921e8e2954f7623c056c3b0edd592d1a0fb6577d96692114e32","name":"Hannah & Maggie","registered_at":"2026-06-21T07:21:23Z","symbol":"NIM1856935","token_address":"0x5a3494cfaa973d525baeb9f0c09decc92ec0f2f8","type":"artist","uuid":"e259c0fe-34f5-4d9e-8aac-258a9a915b55"}
album: Fine Being Here
  type: MusicAlbum
  date published: 2011-02-09
  track: The Land & The Sea
    type: MusicRecording
    duration: PT3M5S
    duration ms: 185240
    explicit: false
    by artist: Hannah & Maggie
    in album: Fine Being Here
      type: MusicAlbum
      date published: 2011-02-09
    isrc code: TCAAW1108219
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T23:17:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8a6c975c3bc8bd9ef490d29b32909a425a709927b6fcb2e786d35ede96d53164
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958079
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958079
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAAW1108219
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T00:21:05Z
    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 0x8a6c975c3bc8bd9ef490d29b32909a425a709927b6fcb2e786d35ede96d53164. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TCAAW1108219.
      date published: 2026-07-15T00:21:05Z
    audio: The Land & The Sea
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.062
      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: 0.574
      additional property: Energy
        type: PropertyValue
        value: 0.379
      additional property: Speechiness
        type: PropertyValue
        value: 0.025
      additional property: Acousticness
        type: PropertyValue
        value: 0.262
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.189
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.511
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.883
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Muscle & Bone
  type: MusicAlbum
  date published: 2012-05-20
album: In the Company of Strangers
  type: MusicAlbum
  date published: 2015-03-02
album: Oh No
  type: MusicAlbum
  date published: 2017-03-21
album: Back to Town
  type: MusicAlbum
  date published: 2017-04-14
album: When You Get There
  type: MusicAlbum
  date published: 2017-05-05
album: Oh No
  type: MusicAlbum
  date published: 2017-05-19
album: The Ghost Hit Sessions
  type: MusicAlbum
  date published: 2018-11-02
album: Rounds of Summer Rain
  type: MusicAlbum
  date published: 2023-06-09