Tineke Postma
type: MusicGroup
genre: jazz
description: Tineke Postma (born August 31, 1978) is a Dutch jazz saxophonist and composer. Saxophonist and composer Tineke Postma was named a rising star for soprano saxophone in DownBeat’s 2019 critics poll. Sh
popularity: 18
followers: 2408
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8da4641b6988192f355b6b4e8d43638217470b1908a0ae9b8244d36417bb5231
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953808
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953808
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef9c0752-0645-4614-b1d1-d1cc3af1c039.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef9c0752-0645-4614-b1d1-d1cc3af1c039.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ef9c0752-0645-4614-b1d1-d1cc3af1c039
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:45:15Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8da4641b6988192f355b6b4e8d43638217470b1908a0ae9b8244d36417bb5231","name":"Tineke Postma","registered_at":"2026-06-15T05:47:10Z","symbol":"NIM0700896","token_address":"0xa0efd6233e754ee77e3f21cc892bea6330fbe9e6","type":"artist","uuid":"ef9c0752-0645-4614-b1d1-d1cc3af1c039"}
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 0x8da4641b6988192f355b6b4e8d43638217470b1908a0ae9b8244d36417bb5231. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef9c0752-0645-4614-b1d1-d1cc3af1c039.json and https://artists.proofprofile.net/proofs/artist/ef9c0752-0645-4614-b1d1-d1cc3af1c039.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:45:15Z
  text: {"copyright_id":"0x8da4641b6988192f355b6b4e8d43638217470b1908a0ae9b8244d36417bb5231","name":"Tineke Postma","registered_at":"2026-06-15T05:47:10Z","symbol":"NIM0700896","token_address":"0xa0efd6233e754ee77e3f21cc892bea6330fbe9e6","type":"artist","uuid":"ef9c0752-0645-4614-b1d1-d1cc3af1c039"}
album: For the Rhythm
  type: MusicAlbum
  date published: 2005
album: For The Rhythm
  type: MusicAlbum
  date published: 2005-01-01
album: A Journey That Matters
  type: MusicAlbum
  date published: 2007-07-25
album: The Traveller
  type: MusicAlbum
  date published: 2010-01-12
album: The Dawn of Light
  type: MusicAlbum
  date published: 2011-03-15
album: Sonic Halo
  type: MusicAlbum
  date published: 2014-09-05
album: Freya
  type: MusicAlbum
  date published: 2020-01-17
album: Aspasia and Pericles
  type: MusicAlbum
  date published: 2020-02-28
album: Freya
  type: MusicAlbum
  date published: 2020-03-20
album: Sankalpa
  type: MusicAlbum
  date published: 2023-02-24
album: Still Another Day
  type: MusicAlbum
  date published: 2023-03-24
album: Frede
  type: MusicAlbum
  date published: 2023-04-21
album: Aria
  type: MusicAlbum
  date published: 2023-05-05
album: Unity And Four Reasons Of Hope
  type: MusicAlbum
  date published: 2025-10-03
album: Lillies
  type: MusicAlbum
  date published: 2025-10-24
album: Voya
  type: MusicAlbum
  date published: 2025-11-14