Egbert Halderman
type: MusicGroup
popularity: 4
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfb6ffca108f309c2352dfc7a54b928f516915e1d9f65e340d3505a5b4ac0b8e2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0499774b-8411-4126-ac93-401a736a3cb3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0499774b-8411-4126-ac93-401a736a3cb3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0499774b-8411-4126-ac93-401a736a3cb3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfb6ffca108f309c2352dfc7a54b928f516915e1d9f65e340d3505a5b4ac0b8e2","name":"Egbert Halderman","registered_at":"2026-06-15T15:08:11Z","symbol":"NIM0746473","token_address":"0x2c2cea0c11ddfd67de17612b530bf7772ae2e491","type":"artist","uuid":"0499774b-8411-4126-ac93-401a736a3cb3"}
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 0xfb6ffca108f309c2352dfc7a54b928f516915e1d9f65e340d3505a5b4ac0b8e2. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0499774b-8411-4126-ac93-401a736a3cb3.json and https://artists.proofprofile.net/proofs/artist/0499774b-8411-4126-ac93-401a736a3cb3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T00:30:31Z
  text: {"copyright_id":"0xfb6ffca108f309c2352dfc7a54b928f516915e1d9f65e340d3505a5b4ac0b8e2","name":"Egbert Halderman","registered_at":"2026-06-15T15:08:11Z","symbol":"NIM0746473","token_address":"0x2c2cea0c11ddfd67de17612b530bf7772ae2e491","type":"artist","uuid":"0499774b-8411-4126-ac93-401a736a3cb3"}
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album: This Bread, This Water
album: The Peace That Stays
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album: The World Anew

The City's Gentle Hum
type: MusicAlbum
date published: 2025-07-29

This Bread, This Water
type: MusicAlbum
date published: 2025-07-29

The Peace That Stays
type: MusicAlbum
date published: 2025-07-30

Thank You for the Rain
type: MusicAlbum
date published: 2025-08-01

The World Anew
type: MusicAlbum
date published: 2025-08-03