Tax Free
type: MusicGroup
description: Tax Free was a Dutch band from Amsterdam. It was founded by singer Wally Tax in 1969 after disbanding of The Outsiders. The group also featured David Oliphant (guitar), Jody Purpora on vocals, guitar
popularity: 36
followers: 1108
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1be5fdea14d52c1c1ee05c5869d9ec27e77de07da630ba2181bb51786bc4af3f
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/0f46dc5d-054d-4960-aade-66166c7b98a6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f46dc5d-054d-4960-aade-66166c7b98a6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0f46dc5d-054d-4960-aade-66166c7b98a6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1be5fdea14d52c1c1ee05c5869d9ec27e77de07da630ba2181bb51786bc4af3f","name":"Tax Free","registered_at":"2026-06-11T11:55:35Z","symbol":"NIM0020490","token_address":"0x6c76113cf065239fd5fb7905fb05693a5a2f6c2f","type":"artist","uuid":"0f46dc5d-054d-4960-aade-66166c7b98a6"}
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 0x1be5fdea14d52c1c1ee05c5869d9ec27e77de07da630ba2181bb51786bc4af3f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f46dc5d-054d-4960-aade-66166c7b98a6.json and https://artists.proofprofile.net/proofs/artist/0f46dc5d-054d-4960-aade-66166c7b98a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x1be5fdea14d52c1c1ee05c5869d9ec27e77de07da630ba2181bb51786bc4af3f","name":"Tax Free","registered_at":"2026-06-11T11:55:35Z","symbol":"NIM0020490","token_address":"0x6c76113cf065239fd5fb7905fb05693a5a2f6c2f","type":"artist","uuid":"0f46dc5d-054d-4960-aade-66166c7b98a6"}
album: Opener
  type: MusicAlbum
  date published: 2025-05-16
album: Ups znów
  type: MusicAlbum
  date published: 2025-05-30
album: 21 Gram
  type: MusicAlbum
  date published: 2025-08-22