Setä Tamu
type: MusicGroup
genre: finnish hip hop
genre: finnish pop
description: Mikko Tamminen (born 20 August 1975), better known by his stage name Setä Tamu, is a Finnish rapper and record producer. Career Vaasalaiset Kansiot Mikko Tamminen started his career as a part of th
popularity: 28
followers: 916
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf819c6d68a8f9ed32fbcc3549f8e3d065600760a4aab7a4c75714ded2f335ef0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00375d93-abc3-478c-808f-8b639d0287d4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00375d93-abc3-478c-808f-8b639d0287d4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/00375d93-abc3-478c-808f-8b639d0287d4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf819c6d68a8f9ed32fbcc3549f8e3d065600760a4aab7a4c75714ded2f335ef0","name":"Setä Tamu","registered_at":"2026-06-12T14:48:08Z","symbol":"NIM0000802","token_address":"0x7d21b38b381f75c2e3eb828c15511b79ad47688e","type":"artist","uuid":"00375d93-abc3-478c-808f-8b639d0287d4"}
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 0xf819c6d68a8f9ed32fbcc3549f8e3d065600760a4aab7a4c75714ded2f335ef0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00375d93-abc3-478c-808f-8b639d0287d4.json and https://artists.proofprofile.net/proofs/artist/00375d93-abc3-478c-808f-8b639d0287d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0xf819c6d68a8f9ed32fbcc3549f8e3d065600760a4aab7a4c75714ded2f335ef0","name":"Setä Tamu","registered_at":"2026-06-12T14:48:08Z","symbol":"NIM0000802","token_address":"0x7d21b38b381f75c2e3eb828c15511b79ad47688e","type":"artist","uuid":"00375d93-abc3-478c-808f-8b639d0287d4"}
album: Jos sä joskus päädyt Berliiniin
  type: MusicAlbum
  date published: 2012-05-21
album: Brokeback Mountain
  type: MusicAlbum
  date published: 2016-06-22