Spigu
type: MusicGroup
genre: finnish pop
genre: finnish rock
popularity: 2
followers: 457
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xceb5638382f4ebeed869c7a2ce7af1433e9bc1009c7884150082b2945bff51e2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eba5af57-0094-4357-9f85-f167d6ca9b36.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eba5af57-0094-4357-9f85-f167d6ca9b36.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eba5af57-0094-4357-9f85-f167d6ca9b36
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
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 0xceb5638382f4ebeed869c7a2ce7af1433e9bc1009c7884150082b2945bff51e2. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eba5af57-0094-4357-9f85-f167d6ca9b36.json and https://artists.proofprofile.net/proofs/artist/eba5af57-0094-4357-9f85-f167d6ca9b36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
album: IV
  type: MusicAlbum
  date published: 2018-11-30
album: Kiehuvan järven maa
  type: MusicAlbum
  date published: 2018-01-12
album: Viimeinen papukaija
  type: MusicAlbum
  date published: 2016-10-14
album: Kaupunkien Yössä
  type: MusicAlbum
  date published: 2014-05-16
album: Juicen elämää
  type: MusicAlbum
  date published: 2017-12-18
album: Heille kadut öisin laulavat
  type: MusicAlbum
  date published: 2016-04-22
album: Herra Tarkastaja
  type: MusicAlbum
  date published: 2013-10-04