Ethan Iverson
type: MusicGroup
description: Ethan Iverson (born February 11, 1973) is a pianist, composer, and critic who was part of the avant-garde jazz trio The Bad Plus with bassist Reid Anderson and drummer Dave King. Biography Iverson
popularity: 2
followers: 233
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x82062f463473dee01d982be9527435128eff08f67ec3d4c21ad8bc1a9822adcd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1c70959c-22a3-45ec-b6a0-ca9631b4b8ac.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1c70959c-22a3-45ec-b6a0-ca9631b4b8ac.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1c70959c-22a3-45ec-b6a0-ca9631b4b8ac
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x82062f463473dee01d982be9527435128eff08f67ec3d4c21ad8bc1a9822adcd","name":"Ethan Iverson","registered_at":"2026-06-15T23:27:40Z","symbol":"NIM0865652","token_address":"0x95d10bb4ca86e8f4c48d2cbc9404c5654067e6b8","type":"artist","uuid":"1c70959c-22a3-45ec-b6a0-ca9631b4b8ac"}
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 0x82062f463473dee01d982be9527435128eff08f67ec3d4c21ad8bc1a9822adcd. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c70959c-22a3-45ec-b6a0-ca9631b4b8ac.json and https://artists.proofprofile.net/proofs/artist/1c70959c-22a3-45ec-b6a0-ca9631b4b8ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x82062f463473dee01d982be9527435128eff08f67ec3d4c21ad8bc1a9822adcd","name":"Ethan Iverson","registered_at":"2026-06-15T23:27:40Z","symbol":"NIM0865652","token_address":"0x95d10bb4ca86e8f4c48d2cbc9404c5654067e6b8","type":"artist","uuid":"1c70959c-22a3-45ec-b6a0-ca9631b4b8ac"}
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  type: MusicAlbum
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