Abacus
type: MusicGroup
genre: electronic rock
genre: krautrock
genre: progressive rock
description: thumb|Bi-quinary coded decimal-like abacus representing An abacus ( abaci or abacuses), also called a counting frame, is a hand-operated calculating tool which was used from ancient times, in the an
popularity: 8
followers: 764
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x85355e8892726b1f68a89e6ffc23a7d6f577a26ae5568c667172645c58ebaf1b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5a6c41e1-c584-477a-91f6-ff27fc93bc18.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5a6c41e1-c584-477a-91f6-ff27fc93bc18.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5a6c41e1-c584-477a-91f6-ff27fc93bc18
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0x85355e8892726b1f68a89e6ffc23a7d6f577a26ae5568c667172645c58ebaf1b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a6c41e1-c584-477a-91f6-ff27fc93bc18.json and https://artists.proofprofile.net/proofs/artist/5a6c41e1-c584-477a-91f6-ff27fc93bc18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Abacus
  type: MusicAlbum
  date published: 1972-03-10
album: Just a Day's Journey Away!
  type: MusicAlbum
  date published: 1972-03-24
album: Everything You Need
  type: MusicAlbum
  date published: 1972-04-07
album: Midway
  type: MusicAlbum
  date published: 1973-04-06
album: Counterculture
  type: MusicAlbum
  date published: 1998-01-01
album: Black Thanx
  type: MusicAlbum
  date published: 1999-06-06
album: Black Thanx
  type: MusicAlbum
  date published: 1999-06-06
album: Fire Behind Bars
  type: MusicAlbum
  date published: 2001
album: Fire Behind Bars
  type: MusicAlbum
  date published: 2001-04-06
album: Abacus - Mamma Mia!
  type: MusicAlbum
  date published: 2008-05-05
album: Destiny
  type: MusicAlbum
  date published: 2010-05-26
album: Destiny
  type: MusicAlbum
  date published: 2010-06-15
album: io
  type: MusicAlbum
  date published: 2013-07-02
album: European Stories
  type: MusicAlbum
  date published: 2016-04-01
album: Highland Warrior
  type: MusicAlbum
  date published: 2021-10-29
track: Les deux magots
  type: MusicRecording
  duration: PT3M3S
  duration ms: 183124
  explicit: false
  by artist: WheelUP
  by artist: Abacus
  in album: Good Love
    type: MusicAlbum
    date published: 2021-04-23
  isrc code: GBEUE2000295
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T06:23:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc235786b1fac540669a8bbe6b9627a727d7c8b13f721b8224711fa39941e22c9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEUE2000295
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  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 0xc235786b1fac540669a8bbe6b9627a727d7c8b13f721b8224711fa39941e22c9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBEUE2000295.
    date published: 2026-06-13T13:32:09Z
  audio: Les deux magots
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.662
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.773
    additional property: Energy
      type: PropertyValue
      value: 0.975
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.28
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.929
    additional property: Liveness
      type: PropertyValue
      value: 0.102
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.934
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.513
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor