Ernest Lawson
type: MusicGroup
description: thumbnail|Ernest Lawson - Approaching Storm Ernest Lawson (March 22, 1873 – December 18, 1939) was a Canadian-American painter and exhibited his work at the Canadian Art Club and as a member of the Am
popularity: 2
followers: 61
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337d077227f1c4360c66ebe46357b261b4d8c122558d0c5ff5f02293cc7ab36f. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/345a3071-3727-434c-b2a0-b237b316e55c.json and https://artists.proofprofile.net/proofs/artist/345a3071-3727-434c-b2a0-b237b316e55c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
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album: Ernesti
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  date published: 2021-02-21
album: Uuh (Viettelybiisi)
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  date published: 2021-03-19
track: Oulu

Oulu
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by artist: Kalevauva.fi
by artist: Ernest Lawson
in album: Kaupunkilaulut, Vol. 1
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  date published: 2022-03-18
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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
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  date published: 2026-07-02T05:09:12Z
audio: Oulu
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