Jorma Ikävalko
type: MusicGroup
genre: iskelmä
genre: polka
popularity: 4
followers: 425
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x285ad79f2d9fdb20001688dd13eb0b37828bf45871150c03b3259247f77867b4
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/69316483-9bf2-4d4e-8e09-d106747cd717.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/69316483-9bf2-4d4e-8e09-d106747cd717.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/69316483-9bf2-4d4e-8e09-d106747cd717
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x285ad79f2d9fdb20001688dd13eb0b37828bf45871150c03b3259247f77867b4","name":"Jorma Ikävalko","registered_at":"2026-06-17T02:19:45Z","symbol":"NIM1250399","token_address":"0xc79097ec402471c6db7f56576b4b0a0d82e1d109","type":"artist","uuid":"69316483-9bf2-4d4e-8e09-d106747cd717"}
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 0x285ad79f2d9fdb20001688dd13eb0b37828bf45871150c03b3259247f77867b4. 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/69316483-9bf2-4d4e-8e09-d106747cd717.json and https://artists.proofprofile.net/proofs/artist/69316483-9bf2-4d4e-8e09-d106747cd717.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x285ad79f2d9fdb20001688dd13eb0b37828bf45871150c03b3259247f77867b4","name":"Jorma Ikävalko","registered_at":"2026-06-17T02:19:45Z","symbol":"NIM1250399","token_address":"0xc79097ec402471c6db7f56576b4b0a0d82e1d109","type":"artist","uuid":"69316483-9bf2-4d4e-8e09-d106747cd717"}
album: Jorma Ikävalko vauhdissa 1
  type: MusicAlbum
  date published: 1957
album: Jorma Ikävalko, Tapio Rautavaara ja Kipparikvartetti
  type: MusicAlbum
  date published: 1959
album: Jorma Ikävalko vauhdissa 2
  type: MusicAlbum
  date published: 1959
album: Jorma Ikävalko vauhdissa 3
  type: MusicAlbum
  date published: 1959
album: Jorma Ikävalko
  type: MusicAlbum
  date published: 1970
album: Unohtumattomat
  type: MusicAlbum
  date published: 1987
track: Ievan polkka
  type: MusicRecording
  duration: PT2M36S
  duration ms: 156373
  explicit: false
  by artist: Jorma Ikävalko
  in album: Vuosikirja 1950 - 50 hittiä
    type: MusicAlbum
    date published: 2007-12-10
  isrc code: FIFMF5000014
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T07:56:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3e18bc34a92eb0dac26e380c4961bc56e2d80a32d706b020351e99bd83996a0d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960368
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960368
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIFMF5000014
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T08:26:41Z
  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 0x3e18bc34a92eb0dac26e380c4961bc56e2d80a32d706b020351e99bd83996a0d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FIFMF5000014.
    date published: 2026-07-31T08:26:41Z
  audio: Ievan polkka
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.503
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.776
    additional property: Energy
      type: PropertyValue
      value: 0.458
    additional property: Speechiness
      type: PropertyValue
      value: 0.065
    additional property: Acousticness
      type: PropertyValue
      value: 0.795
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.317
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.967
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.878
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor