Sigh.fi
type: MusicGroup
genre: jazz beats
popularity: 22
followers: 85
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  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/19ab21be-7c13-49ab-9699-a7725504936c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/19ab21be-7c13-49ab-9699-a7725504936c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/19ab21be-7c13-49ab-9699-a7725504936c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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 0x031ec36600a2862fab71744c6b15fe9c83f00d6f04111299a2fbc2a78fdf26cc. 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/19ab21be-7c13-49ab-9699-a7725504936c.json and https://artists.proofprofile.net/proofs/artist/19ab21be-7c13-49ab-9699-a7725504936c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
album: Here's to You
  type: MusicAlbum
  date published: 2023-03-17
album: Ruby Woman
  type: MusicAlbum
  date published: 2023-04-14
  track: Night Owl
    type: MusicRecording
    duration: PT2M30S
    duration ms: 150000
    explicit: false
    by artist: Sigh.fi
    in album: Ruby Woman
      type: MusicAlbum
      date published: 2023-04-14
    genre: jazz beats
    isrc code: QZHN42360160
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
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      type: PropertyValue
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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/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN42360160
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0x94de12735bcb8123d0cb455dd819c8fca676aa3656f5939dacb230831f573a1e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHN42360160.
      date published: 2026-07-06T01:26:17Z
    audio: Night Owl
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.911
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.462
      additional property: Energy
        type: PropertyValue
        value: 0.439
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.191
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.011
      additional property: Liveness
        type: PropertyValue
        value: 0.43
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.112
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.263
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
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  track: Neon Dreams
    type: MusicRecording
    duration: PT2M57S
    duration ms: 177600
    explicit: false
    by artist: Sigh.fi
    in album: Ruby Woman
      type: MusicAlbum
      date published: 2023-04-14
    genre: jazz beats
    isrc code: QZHN42360161
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN42360161
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T11:47:20Z
    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 0x459bb9a3969ff17d76c20a59a44a27889bf64583e759cc55e3f853c0228b1421. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZHN42360161.
      date published: 2026-07-19T11:47:20Z
    audio: Neon Dreams
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 75.667
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.288
      additional property: Energy
        type: PropertyValue
        value: 0.397
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.848
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.935
      additional property: Liveness
        type: PropertyValue
        value: 0.807
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.038
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Visitors
album: Noodles
album: Searching
album: Trip-Hop Vol 1.
album: Close Encounter
album: Just for Tonight
album: Anticipation
album: Masquerade
album: Aquamarine
album: Pressure
album: Haze
album: Release
album: Tenor Talk
album: Jade
album: Wondering
album: Jellyfish
album: Floating

Loudness (dB)
type: PropertyValue
value: -13.409

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Visitors
type: MusicAlbum
date published: 2023-07-14

Noodles
type: MusicAlbum
date published: 2023-09-01

Searching
type: MusicAlbum
date published: 2023-10-06

Trip-Hop Vol 1.
type: MusicAlbum
date published: 2023-10-13

Close Encounter
type: MusicAlbum
date published: 2023-11-17

Just for Tonight
type: MusicAlbum
date published: 2023-12-08

Anticipation
type: MusicAlbum
date published: 2023-12-22

Masquerade
type: MusicAlbum
date published: 2024-01-26

Aquamarine
type: MusicAlbum
date published: 2024-02-09

Pressure
type: MusicAlbum
date published: 2024-03-01

Haze
type: MusicAlbum
date published: 2024-03-15

Release
type: MusicAlbum
date published: 2024-03-29

Tenor Talk
type: MusicAlbum
date published: 2024-05-17

Jade
type: MusicAlbum
date published: 2024-06-07

Wondering
type: MusicAlbum
date published: 2024-06-14

Jellyfish
type: MusicAlbum
date published: 2024-07-05

Floating
type: MusicAlbum
date published: 2024-07-19