Theodor Schreiber
type: MusicGroup
description: right|thumb|Theodor Schreiber Georg Theodor Schreiber (13 May 1848, Strehla – 13 March 1913, Leipzig) was a German archaeologist and art historian. From 1868 to 1872 he studied at the University of L
popularity: 5
followers: 1
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/954618
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  value: https://artists.proofprofile.net/proofs/artist/c8397bc2-ba24-4f7d-8f51-df7127002160.ots
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60e02c3dd910b76ade349fb9d3ca319ff91fcddaff30f4314613523b9f72902. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8397bc2-ba24-4f7d-8f51-df7127002160.json and https://artists.proofprofile.net/proofs/artist/c8397bc2-ba24-4f7d-8f51-df7127002160.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0xa60e02c3dd910b76ade349fb9d3ca319ff91fcddaff30f4314613523b9f72902","name":"Theodor Schreiber","registered_at":"2026-06-20T22:01:39Z","symbol":"NIM1726274","token_address":"0x62e2f4d42ad8c19478b985f1f55463f409660beb","type":"artist","uuid":"c8397bc2-ba24-4f7d-8f51-df7127002160"}
album: Frost-Covered Leaves
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  date published: 2024-11-04
  track: Frost-Covered Leaves
    type: MusicRecording
    duration: PT4M0S
    duration ms: 240000
    explicit: false
    by artist: Theodor Schreiber
    in album: Frost-Covered Leaves
      type: MusicAlbum
      date published: 2024-11-04
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T13:14:32Z
    additional property: OTSVerifyInstructions
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      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x53dd12d573e7d9b8e1a383be895be5c2754bd32b438df0faa8f2d6efaa9dad46. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT2VB2490652.
      date published: 2026-07-15T13:14:32Z
    audio: Frost-Covered Leaves
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Key Name
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