ASTA
type: MusicGroup
description: The General Students' Committee () or AStA, is the acting executive board and the external representing agency of the (constituted) student body at universities in most German states. It is therefore
popularity: 10
followers: 58
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9f6baaf17b15859826a3ad8b33dba6fb1324268497046fe74ee696a0f6a5686
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953888
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953888
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0cf4f5be-84f7-4003-8ce1-874c2d4ba16d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0cf4f5be-84f7-4003-8ce1-874c2d4ba16d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0cf4f5be-84f7-4003-8ce1-874c2d4ba16d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:55:23Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f6baaf17b15859826a3ad8b33dba6fb1324268497046fe74ee696a0f6a5686. Chain 2 (Bitcoin): anchored in block 953889 (2026-06-16T04:57:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0cf4f5be-84f7-4003-8ce1-874c2d4ba16d.json and https://artists.proofprofile.net/proofs/artist/0cf4f5be-84f7-4003-8ce1-874c2d4ba16d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T04:57:45Z
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  type: MusicAlbum
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