Lew Pollack
type: MusicGroup
description: Lew Pollack (June 16, 1895 – January 18, 1946) was an American song composer and musician active during the 1920s and the 1930s. Career Pollack was born in New York City, where he went to DeWitt Clin
popularity: 9
followers: 89
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02a67814259daf64b3e09c5e9556f006090e18cdfce9a0691ac70ce571b6c65. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b180cb56-7a74-4e0b-a425-84b25da81083.json and https://artists.proofprofile.net/proofs/artist/b180cb56-7a74-4e0b-a425-84b25da81083.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
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album: Charmaine (From "What Price Glory")
  type: MusicAlbum
  date published: 2020-03-13
  track: Charmaine - From "What Price Glory"

Charmaine - From "What Price Glory"
type: MusicRecording
duration: PT3M28S
duration ms: 208499
explicit: false
by artist: Lew Pollack
in album: Charmaine (From "What Price Glory")
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  date published: 2020-03-13
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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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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e39814ac727accc7a2136734f17437df4c52fdfe0598733c819909deda6674. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBBC2000070.
  date published: 2026-06-13T15:41:10Z
audio: Charmaine - From "What Price Glory"
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  additional property: Danceability
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Loudness (dB)
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  additional property: Key Name
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