TESTER
type: MusicGroup
genre: disco polo
description: Tester may refer to: Tester (surname) Test equipment Tester, the upper part of a four-poster bed Tester or sounding board, a canopy over a tomb or pulpit "Tester" a song by Anthrax on the album
popularity: 2
followers: 41
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8a7b7428e6662127d522d25374fca4a2bc65f47f9f4cef63796cb359eccede9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd8811b4-c6a5-46ca-a31d-9add0c9f3702.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd8811b4-c6a5-46ca-a31d-9add0c9f3702.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fd8811b4-c6a5-46ca-a31d-9add0c9f3702
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
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 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 0xd8a7b7428e6662127d522d25374fca4a2bc65f47f9f4cef63796cb359eccede9. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd8811b4-c6a5-46ca-a31d-9add0c9f3702.json and https://artists.proofprofile.net/proofs/artist/fd8811b4-c6a5-46ca-a31d-9add0c9f3702.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
album: PUERTO RICO
  type: MusicAlbum
  date published: 2021-06-30
album: MI JENTE
  type: MusicAlbum
  date published: 2023-01-20
album: Polskie Kuduro
  type: MusicAlbum
  date published: 2023-06-12
album: Chodź Mała
  type: MusicAlbum
  date published: 2023-08-25
album: Nocą 2
  type: MusicAlbum
  date published: 2024-09-20
album: Więcej Chce
  type: MusicAlbum
  date published: 2024-10-06
album: Kręcimy Teraz
  type: MusicAlbum
  date published: 2024-11-13