Mefisto
type: MusicGroup
genre: black metal
genre: death metal
genre: speed metal
genre: thrash metal
popularity: 7
followers: 4803
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8e2aa471b5019a8e3d19ba7bb9a88c480e1d4013d37c2e47142d65dab43869e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d59d7f0b-332a-4487-a0dd-03889f643b50.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d59d7f0b-332a-4487-a0dd-03889f643b50.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d59d7f0b-332a-4487-a0dd-03889f643b50
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
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 0xb8e2aa471b5019a8e3d19ba7bb9a88c480e1d4013d37c2e47142d65dab43869e. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d59d7f0b-332a-4487-a0dd-03889f643b50.json and https://artists.proofprofile.net/proofs/artist/d59d7f0b-332a-4487-a0dd-03889f643b50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
album: The Megalomania Puzzle
  type: MusicAlbum
  date published: 2014-06-16
  track: Betrayed Truth
    type: MusicRecording
    duration: PT4M20S
    duration ms: 260480
    explicit: false
    by artist: Mefisto
    in album: The Megalomania Puzzle
      type: MusicAlbum
      date published: 2014-06-16
    genre: black metal
    genre: death metal
    genre: speed metal
    genre: thrash metal
    isrc code: NLW501400074
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T22:30:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd514665d3513f91737be8fbb61afad0e38757e3c90ddc4e9d96719abf9993b59
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959069
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959069
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLW501400074
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T22:32:59Z
    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 0xd514665d3513f91737be8fbb61afad0e38757e3c90ddc4e9d96719abf9993b59. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/NLW501400074.
      date published: 2026-07-21T22:32:59Z
    audio: Betrayed Truth
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.707
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.266
      additional property: Energy
        type: PropertyValue
        value: 0.93
      additional property: Speechiness
        type: PropertyValue
        value: 0.063
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.818
      additional property: Liveness
        type: PropertyValue
        value: 0.047
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.101
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.457
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Act Dead
  type: MusicAlbum
  date published: 2015-07-31
album: Void
  type: MusicAlbum
  date published: 2015-12-15
album: 2. 0. 1. 6
  type: MusicAlbum
  date published: 2016-02-22
album: I in the Sky
  type: MusicAlbum
  date published: 2017-05-19
album: Let Go of Life
  type: MusicAlbum
  date published: 2017-07-23
album: Mefisto
  type: MusicAlbum
  date published: 2017-10-13
album: Mefisto
  type: MusicAlbum
  date published: 2017-10-13
album: Born for Burning
  type: MusicAlbum
  date published: 2019-04-30
album: Armageddon
  type: MusicAlbum
  date published: 2019-09-13
album: Roots Ov Thy Soul
  type: MusicAlbum
  date published: 2019-10-12
album: Octagram
  type: MusicAlbum
  date published: 2019-12-05
album: The Demigod
  type: MusicAlbum
  date published: 2022-03-01
album: Hellhounds
  type: MusicAlbum
  date published: 2022-04-11
album: Blades of Lucifer
  type: MusicAlbum
  date published: 2022-06-06
album: Phosphorus
  type: MusicAlbum
  date published: 2022-07-13
track: Betrayed Truth

Betrayed Truth
type: MusicRecording
duration: PT4M18S
duration ms: 258866
explicit: false
by artist: Mefisto
in album: Swedish Death Metal
  type: MusicAlbum
  date published: 2009-02-27
isrc code: DES560901501
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T08:21:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x36a542ee88157952efd36300350fdc09755e1ce19dc13f00f796580850749579
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957819
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957819
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES560901501
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T07:53:33Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957819
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-13T07:53:33+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a542ee88157952efd36300350fdc09755e1ce19dc13f00f796580850749579. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DES560901501.
  date published: 2026-07-13T07:53:33Z
audio: Betrayed Truth
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.138
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.268
  additional property: Energy
    type: PropertyValue
    value: 0.975
  additional property: Speechiness
    type: PropertyValue
    value: 0.103
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.828
  additional property: Liveness
    type: PropertyValue
    value: 0.046
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.1
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.003
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor