Extrapolation
type: MusicGroup
genre: harana
genre: pinoy indie
description: In mathematics, extrapolation is a type of estimation, beyond the original observation range, of the value of a variable on the basis of its relationship with another variable. It is similar to interp
popularity: 13
followers: 2002
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x36298ef9cd41d05f96ddb20163658f32d612ab943610f5716dd8f742e4162bc9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953727
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953727
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e6dd8e0-3aa8-46ea-b07e-93c2afd9e896.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e6dd8e0-3aa8-46ea-b07e-93c2afd9e896.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e6dd8e0-3aa8-46ea-b07e-93c2afd9e896
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T02:33:01Z
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 0x36298ef9cd41d05f96ddb20163658f32d612ab943610f5716dd8f742e4162bc9. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e6dd8e0-3aa8-46ea-b07e-93c2afd9e896.json and https://artists.proofprofile.net/proofs/artist/8e6dd8e0-3aa8-46ea-b07e-93c2afd9e896.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T02:33:01Z
album: Sunshine Blue
  type: MusicAlbum
  date published: 2017-09-28
album: Black and White
  type: MusicAlbum
  date published: 2018-10-12
  track: Black and White
    type: MusicRecording
    duration: PT5M29S
    duration ms: 329862
    explicit: false
    by artist: Extrapolation
    in album: Black and White
      type: MusicAlbum
      date published: 2018-10-12
    genre: harana
    genre: pinoy indie
    isrc code: TCADX1829202
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T21:05:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x87045be5b9062e55f904ea5656a8cd7f077830579b9bc4a461504280c34ba6b5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADX1829202
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0x87045be5b9062e55f904ea5656a8cd7f077830579b9bc4a461504280c34ba6b5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCADX1829202.
      date published: 2026-07-06T01:25:57Z
    audio: Black and White
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 82.044
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.455
      additional property: Energy
        type: PropertyValue
        value: 0.309
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.358
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.059
      additional property: Liveness
        type: PropertyValue
        value: 0.079
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.203
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.456
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Shot in the Dark
  type: MusicAlbum
  date published: 2019-10-25
album: Ghost/Villain
  type: MusicAlbum
  date published: 2020-12-22
album: Ghost/Villain
  type: MusicAlbum
  date published: 2020-12-22
album: aLIVE at Wild Grass Studios
  type: MusicAlbum
  date published: 2021-08-22
album: aLIVE at Wild Grass Studios
  type: MusicAlbum
  date published: 2021-08-22
album: Samsara
  type: MusicAlbum
  date published: 2023-12-15
album: Patay-Sindi
  type: MusicAlbum
  date published: 2024-02-16
  track: Patay-Sindi
    type: MusicRecording
    duration: PT3M56S
    duration ms: 236032
    explicit: false
    by artist: Extrapolation
    in album: Patay-Sindi
      type: MusicAlbum
      date published: 2024-02-16
    genre: harana
    genre: pinoy indie
    isrc code: AUBEC2411927
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T22:50:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x47c6fe89132181a812d40b499bcce982a7ad621a785ea102f37265c02186c1a5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958793
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958793
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUBEC2411927
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T01:52:33Z
    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 0x47c6fe89132181a812d40b499bcce982a7ad621a785ea102f37265c02186c1a5. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:52:33Z), 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/AUBEC2411927.
      date published: 2026-07-20T01:52:33Z
    audio: Patay-Sindi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 165.878
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Patay-Sindi (Vintageboy Amapiano Remix)

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.558

Energy
type: PropertyValue
value: 0.336

Speechiness
type: PropertyValue
value: 0.104

Acousticness
type: PropertyValue
value: 0.354

Instrumentalness
type: PropertyValue
value: 0.073

Liveness
type: PropertyValue
value: 0.133

Valence (Positivity)
type: PropertyValue
value: 0.757

Loudness (dB)
type: PropertyValue
value: -16.781

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor

Patay-Sindi (Vintageboy Amapiano Remix)
type: MusicAlbum
date published: 2025-02-14