Janet Klein
type: MusicGroup
genre: dark cabaret
genre: ragtime
popularity: 27
followers: 1620
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x0d5b5bbf4495d960e1252425362fe78a97d5811730b5b862fb4e021e7a89bdbd
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/7ada5af0-2149-4ad9-8d73-572439ce155a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ada5af0-2149-4ad9-8d73-572439ce155a.json
additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
  type: PropertyValue
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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 0x0d5b5bbf4495d960e1252425362fe78a97d5811730b5b862fb4e021e7a89bdbd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ada5af0-2149-4ad9-8d73-572439ce155a.json and https://artists.proofprofile.net/proofs/artist/7ada5af0-2149-4ad9-8d73-572439ce155a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x0d5b5bbf4495d960e1252425362fe78a97d5811730b5b862fb4e021e7a89bdbd","name":"Janet Klein","registered_at":"2026-06-12T15:41:32Z","symbol":"NIM0160315","token_address":"0x726033786f8b6ad63f8d1195d7876b5f048b420d","type":"artist","uuid":"7ada5af0-2149-4ad9-8d73-572439ce155a"}
album: Come Into My Parlor
  type: MusicAlbum
  date published: 1999-06-02
album: Sunday Blues
  type: MusicAlbum
  date published: 2013-04-19
album: Living in Sin
  type: MusicAlbum
  date published: 2014-07-24
album: Night Wind
  type: MusicAlbum
  date published: 2014-07-24
album: Unrequited
  type: MusicAlbum
  date published: 2014-07-24
album: Everyone Says I Love You
  type: MusicAlbum
  date published: 2014-08-28
album: Jersey Walk
  type: MusicAlbum
  date published: 2014-08-28
album: Sunday
  type: MusicAlbum
  date published: 2014-12-20
album: Baby O Mine
  type: MusicAlbum
  date published: 2014-12-20
album: Unrequited
  type: MusicAlbum
  date published: 2018-10-12
album: Night Wind
  type: MusicAlbum
  date published: 2018-10-12
track: Ms. Langtree's Lament (feat. Janet Klein)

Ms. Langtree's Lament (feat. Janet Klein)
type: MusicRecording
duration: PT2M27S
duration ms: 147906
explicit: false
by artist: Over the Garden Wall
by artist: The Blasting Company
by artist: Janet Klein
in album: Over the Garden Wall (Original Television Soundtrack)
  type: MusicAlbum
  date published: 2016-07-19
isrc code: GB9TP1501072
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB9TP1501072
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2bd56be6fc2bc1d40956b1c7639abc785616fd94181d040ecc504be6330323. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB9TP1501072.
  date published: 2026-06-13T12:47:07Z
audio: Ms. Langtree's Lament (feat. Janet Klein)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 71.402
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.627
  additional property: Energy
    type: PropertyValue
    value: 0.382
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
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    value: 0.646
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.173
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.514
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.314
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major