Raven
type: MusicGroup
description: thumb|right|Common raven of California (Corvus corax clarionensis) in flight A raven is any of several large-bodied passerine bird species in the genus Corvus. These species do not form a single taxon
popularity: 19
followers: 652
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2c0ed81130f73aee69fb1e73a3150948073d961b444aac787446edf2e1a9d85f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4531aa02-5f22-4056-9409-dfbb94fcf986.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4531aa02-5f22-4056-9409-dfbb94fcf986.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4531aa02-5f22-4056-9409-dfbb94fcf986
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
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 0x2c0ed81130f73aee69fb1e73a3150948073d961b444aac787446edf2e1a9d85f. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4531aa02-5f22-4056-9409-dfbb94fcf986.json and https://artists.proofprofile.net/proofs/artist/4531aa02-5f22-4056-9409-dfbb94fcf986.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
album: Hrokr / Skavs
  type: MusicAlbum
  date published: 2014-05-05
album: Screaming Murder Death from Above: Live in Aalborg
  type: MusicAlbum
  date published: 2019-01-18
album: Я не верю
  type: MusicAlbum
  date published: 2019-08-09
album: Easy Mode
  type: MusicAlbum
  date published: 2019-09-20
track: On and On
  type: MusicRecording
  duration: PT3M53S
  duration ms: 233000
  explicit: false
  by artist: Raven
  in album: 100 Greatest Metal
    type: MusicAlbum
    date published: 2020-01-24
  isrc code: USAT21404458
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T10:32:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6970c8f2acee04393f829e303465b5b27fa6a59dc27335e8c3237ed6ec277ae3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT21404458
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x6970c8f2acee04393f829e303465b5b27fa6a59dc27335e8c3237ed6ec277ae3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USAT21404458.
    date published: 2026-07-02T03:55:08Z
  audio: On and On
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.93
    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: 0.456
    additional property: Energy
      type: PropertyValue
      value: 0.591
    additional property: Speechiness
      type: PropertyValue
      value: 0.101
    additional property: Acousticness
      type: PropertyValue
      value: 0.108
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.054
    additional property: Liveness
      type: PropertyValue
      value: 0.188
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.485
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.951
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor