Söngfuglarnir
type: MusicGroup
genre: children's music
popularity: 12
followers: 527
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd05e86c885e4d61e36ab4b4115faa3ca084939d449d95f5ec2ca2c85341ca0b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea2e33b1-90d2-45c9-8df1-027927185b92.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea2e33b1-90d2-45c9-8df1-027927185b92.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ea2e33b1-90d2-45c9-8df1-027927185b92
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd05e86c885e4d61e36ab4b4115faa3ca084939d449d95f5ec2ca2c85341ca0b6","name":"Söngfuglarnir","registered_at":"2026-06-15T05:01:49Z","symbol":"NIM0690067","token_address":"0x34116704ac38a6852972c53537a31bb4e301c350","type":"artist","uuid":"ea2e33b1-90d2-45c9-8df1-027927185b92"}
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 0xd05e86c885e4d61e36ab4b4115faa3ca084939d449d95f5ec2ca2c85341ca0b6. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea2e33b1-90d2-45c9-8df1-027927185b92.json and https://artists.proofprofile.net/proofs/artist/ea2e33b1-90d2-45c9-8df1-027927185b92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0xd05e86c885e4d61e36ab4b4115faa3ca084939d449d95f5ec2ca2c85341ca0b6","name":"Söngfuglarnir","registered_at":"2026-06-15T05:01:49Z","symbol":"NIM0690067","token_address":"0x34116704ac38a6852972c53537a31bb4e301c350","type":"artist","uuid":"ea2e33b1-90d2-45c9-8df1-027927185b92"}
album: Söngfuglarnir syngja 20 barnalög
  type: MusicAlbum
  date published: 1975
album: Söngfuglarnir syngja 20 barnalög
  type: MusicAlbum
  date published: 1975-01-01
  track: Krummi krunkar úti
    type: MusicRecording
    duration: PT0M49S
    duration ms: 49086
    explicit: false
    by artist: Söngfuglarnir
    in album: Söngfuglarnir syngja 20 barnalög
      type: MusicAlbum
      date published: 1975-01-01
    genre: children's music
    isrc code: ISA110903707
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T04:25:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xeb87ecb24cb0b1886236b26ff9502861468222c164e475a76e5fb7173100625e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISA110903707
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0xeb87ecb24cb0b1886236b26ff9502861468222c164e475a76e5fb7173100625e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ISA110903707.
      date published: 2026-07-03T08:56:35Z
    audio: Krummi krunkar úti
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.663
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.618
      additional property: Energy
        type: PropertyValue
        value: 0.544
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.774
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.138
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.979
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.843
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Tíu litlir fingur
    type: MusicRecording
    duration: PT1M19S
    duration ms: 79458
    explicit: false
    by artist: Söngfuglarnir
    in album: Söngfuglarnir syngja 20 barnalög
      type: MusicAlbum
      date published: 1975-01-01
    genre: children's music
    isrc code: ISA110903713
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T20:57:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x256c62175d4446634524e53d900f3e1843470a703bbd620accca5c35940b4fa8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958202
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958202
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISA110903713
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T00:00:50Z
    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 0x256c62175d4446634524e53d900f3e1843470a703bbd620accca5c35940b4fa8. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:00:50Z), 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/ISA110903713.
      date published: 2026-07-16T00:00:50Z
    audio: Tíu litlir fingur
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 82.21
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.552
      additional property: Energy
        type: PropertyValue
        value: 0.387
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.875
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.095
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Valence (Positivity)
type: PropertyValue
value: 0.566

Loudness (dB)
type: PropertyValue
value: -9.488

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Söngfuglarnir syngja 20 barnalög
type: MusicAlbum
date published: 1975-01-01