Alan Bern
type: MusicGroup
genre: avant-garde
description: Alan Bern (Bloomington, Indiana, 1955) is an American composer, pianist, accordionist, educator and cultural activist, based in Berlin since 1987. He is the founding artistic director of Yiddish Summe
popularity: 6
followers: 211
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cba7fe0e0237579e37a63f9582f73655d20998645ccf284d7038233d97b0c25. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9ab4b76-94f6-4322-a0fb-20a166ee9e0f.json and https://artists.proofprofile.net/proofs/artist/d9ab4b76-94f6-4322-a0fb-20a166ee9e0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
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album: Notefalls
  type: MusicAlbum
  date published: 2015-04-01
album: Accordance
  type: MusicAlbum
  date published: 2015-05-01
album: Accordance
  type: MusicAlbum
  date published: 2015-05-01
track: Reb Itzik's Nign
track: Traditional: Reb Itzik's Nign

Reb Itzik's Nign
type: MusicRecording
duration: PT6M6S
duration ms: 366333
explicit: false
by artist: Alan Bern
by artist: Itzhak Perlman
by artist: Brave Old World
in album: Tradition & Klezmer
  type: MusicAlbum
  date published: 2015-08-28
isrc code: GBAYC1501758
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda62a38ea6e5f2628f91ba418c3253fca039fdce4124a40e02b505aa791d27d8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAYC1501758.
  date published: 2026-07-08T03:20:19Z
audio: Reb Itzik's Nign
  type: AudioObject
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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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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  additional property: Mode Name
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Traditional: Reb Itzik's Nign
type: MusicRecording
duration: PT6M6S
duration ms: 366333
explicit: false
by artist: Alan Bern
by artist: Itzhak Perlman
in album: Perlman plays Klezmer
  type: MusicAlbum
  date published: 2008-07-07
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7dbae5294b071e91055689630b179c38affd6185499e1133b41aa40567e679. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GBAYC9500543.
  date published: 2026-07-29T12:35:17Z
audio: Traditional: Reb Itzik's Nign
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  additional property: Key Name
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    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: GBAYC9500543
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9500543
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additional property: OTSBitcoinBlock
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T12:35:17+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  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