HAVVK
type: MusicGroup
popularity: 4
followers: 1676
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x74d9a2227ca95b0f64019e81efb86e6bf1d9b53ad1221dcae99b97e0993917c1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c562a32c-59c4-499a-b54c-f9e937204419.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c562a32c-59c4-499a-b54c-f9e937204419.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c562a32c-59c4-499a-b54c-f9e937204419
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d9a2227ca95b0f64019e81efb86e6bf1d9b53ad1221dcae99b97e0993917c1. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c562a32c-59c4-499a-b54c-f9e937204419.json and https://artists.proofprofile.net/proofs/artist/c562a32c-59c4-499a-b54c-f9e937204419.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
album: Clock Hands EP
  type: MusicAlbum
  date published: 2015-02-23
album: HAVVK
  type: MusicAlbum
  date published: 2016-04-15
album: Once Told
  type: MusicAlbum
  date published: 2016-04-15
album: She Knows - EP
  type: MusicAlbum
  date published: 2017-03-17
album: Sin
  type: MusicAlbum
  date published: 2017-07-14
album: Below
  type: MusicAlbum
  date published: 2017-11-17
album: Can't Explain
  type: MusicAlbum
  date published: 2017-11-17
album: Keeps Me Out
  type: MusicAlbum
  date published: 2018-03-16
album: Glass
  type: MusicAlbum
  date published: 2018-08-10
album: Always the Same
  type: MusicAlbum
  date published: 2018-11-23
album: Birds on a Wire
  type: MusicAlbum
  date published: 2019-02-01
album: If I Don't Tell You
  type: MusicAlbum
  date published: 2019-03-08
album: Cause & Effect
  type: MusicAlbum
  date published: 2019-03-08
album: The Factory
  type: MusicAlbum
  date published: 2019-04-12
album: Cause & Effect
  type: MusicAlbum
  date published: 2019-05-17
album: 52
  type: MusicAlbum
  date published: 2019-09-27
album: Cause & Effect
  type: MusicAlbum
  date published: 2019-11-22
album: Operate
  type: MusicAlbum
  date published: 2020-05-29
album: Plans with Friends
  type: MusicAlbum
  date published: 2020-10-30
album: Home
  type: MusicAlbum
  date published: 2021-02-17
album: No Patience
  type: MusicAlbum
  date published: 2021-03-24
album: Automatic
  type: MusicAlbum
  date published: 2021-06-09
album: Halfway Out
  type: MusicAlbum
  date published: 2021-08-11
album: Levelling
  type: MusicAlbum
  date published: 2021-09-17
album: Daylight Robbery
  type: MusicAlbum
  date published: 2023-05-24
album: Expiry
  type: MusicAlbum
  date published: 2023-08-16
album: City Creep
  type: MusicAlbum
  date published: 2023-11-01
album: You Say You Won't
  type: MusicAlbum
  date published: 2024-01-11
album: Take It From Me
  type: MusicAlbum
  date published: 2024-02-22
album: To Fall Asleep
  type: MusicAlbum
  date published: 2024-03-15
album: Happening Again
  type: MusicAlbum
  date published: 2025-11-06
track: Same Face
  type: MusicRecording
  duration: PT4M17S
  duration ms: 257978
  explicit: false
  by artist: Birthday Problem
  by artist: HAVVK
  in album: For Now
    type: MusicAlbum
    date published: 2025-04-03
  isrc code: UKDE22400005
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T21:49:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x08f9c4cddf5d002229921f82586bac812494afecf19c31066a778603659e888f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960153
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960153
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKDE22400005
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T21:57:12Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f9c4cddf5d002229921f82586bac812494afecf19c31066a778603659e888f. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/UKDE22400005.
    date published: 2026-07-29T21:57:12Z
  audio: Same Face
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 158.818
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.305
    additional property: Energy
      type: PropertyValue
      value: 0.442
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.068
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.902
    additional property: Liveness
      type: PropertyValue
      value: 0.108
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Valence (Positivity)
type: PropertyValue
value: 0.04

Loudness (dB)
type: PropertyValue
value: -12.766

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major