Piotr Damasiewicz
type: MusicGroup
genre: free jazz
description: Piotr Damasiewicz (born 11 April 1980), also known as Damaś, is a Polish composer, vocalist and multi-instrumentalist. His instruments include the trumpet, double bass and piano. He studied music in W
popularity: 10
followers: 1022
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb41519d7d048fd99e9cd75c91d4f65948872c342db9a61276543abbec5767712
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9ded6860-2c58-4b03-8c4e-4e1a6d5c15c8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9ded6860-2c58-4b03-8c4e-4e1a6d5c15c8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9ded6860-2c58-4b03-8c4e-4e1a6d5c15c8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb41519d7d048fd99e9cd75c91d4f65948872c342db9a61276543abbec5767712","name":"Piotr Damasiewicz","registered_at":"2026-06-20T04:45:28Z","symbol":"NIM1515536","token_address":"0x75dd91ba1c040879c0bdffe3769c3409b5889f7d","type":"artist","uuid":"9ded6860-2c58-4b03-8c4e-4e1a6d5c15c8"}
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 0xb41519d7d048fd99e9cd75c91d4f65948872c342db9a61276543abbec5767712. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ded6860-2c58-4b03-8c4e-4e1a6d5c15c8.json and https://artists.proofprofile.net/proofs/artist/9ded6860-2c58-4b03-8c4e-4e1a6d5c15c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0xb41519d7d048fd99e9cd75c91d4f65948872c342db9a61276543abbec5767712","name":"Piotr Damasiewicz","registered_at":"2026-06-20T04:45:28Z","symbol":"NIM1515536","token_address":"0x75dd91ba1c040879c0bdffe3769c3409b5889f7d","type":"artist","uuid":"9ded6860-2c58-4b03-8c4e-4e1a6d5c15c8"}
album: Polska
  type: MusicAlbum
  date published: 2019-11-29
album: Polska
  type: MusicAlbum
  date published: 2019-11-29
album: Vienna Suite
  type: MusicAlbum
  date published: 2020-10-10
album: Śpiwle
  type: MusicAlbum
  date published: 2020-12-18
album: Watra
  type: MusicAlbum
  date published: 2021-06-26
album: Diavolezza
  type: MusicAlbum
  date published: 2022-10-26
album: Skawa
  type: MusicAlbum
  date published: 2023-04-28
album: Krew
  type: MusicAlbum
  date published: 2023-07-19
album: Świtanie
  type: MusicAlbum
  date published: 2024-05-16
album: Zerwane Rozmowy "Dym"
  type: MusicAlbum
  date published: 2024-07-04