The Gertrudes
type: MusicGroup
description: The Gertrudes are a Canadian indie folk band from Kingston, Ontario, founded in 2008. From 2009-2012 they found significant placement on campus music charts, toured Canada coast to coast, and reached
popularity: 10
followers: 309
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-15T23:55:46Z
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album: Hard Water
  type: MusicAlbum
  date published: 2009-06-01
album: Dawn Time Riot
  type: MusicAlbum
  date published: 2010-10-17
album: Till the Morning Shows Her Face to Me
  type: MusicAlbum
  date published: 2011-11-01
album: Neighbourhood
  type: MusicAlbum
  date published: 2013-09-17
album: Neighbourhood
  type: MusicAlbum
  date published: 2013-09-17
album: The Other Side
  type: MusicAlbum
  date published: 2020-10-16
album: Emergency to Emergency
  type: MusicAlbum
  date published: 2020-12-11
album: Parham
  type: MusicAlbum
  date published: 2021-05-28
album: New Carolina (Radio Edit)
  type: MusicAlbum
  date published: 2021-09-10
album: Terpenes
  type: MusicAlbum
  date published: 2021-10-20
album: Emergency to Emergency
  type: MusicAlbum
  date published: 2021-11-26
album: The Last Rehearsal
  type: MusicAlbum
  date published: 2023-05-18
album: Carry On
  type: MusicAlbum
  date published: 2023-06-20
album: The Waiting Land
  type: MusicAlbum
  date published: 2023-07-20
album: Just To Please You
  type: MusicAlbum
  date published: 2023-08-18
album: Elf Ears
  type: MusicAlbum
  date published: 2025-01-10
album: City Noise
  type: MusicAlbum
  date published: 2025-02-07
album: City Noise
  type: MusicAlbum
  date published: 2025-03-14
  track: Lone Coyote
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      date published: 2025-03-14
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      date published: 2026-07-12T23:17:00Z
    audio: Lone Coyote
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  track: City Noise
    type: MusicRecording
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    by artist: The Gertrudes
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      date published: 2025-03-14
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    audio: City Noise

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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

OpenTimestamps Proof of Existence
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encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692c64c970aebcb86292e873c09cd0a46eda601f41ada7def0f6eae7a1ceec86. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FR10S2539759.
date published: 2026-07-18T22:59:44Z

City Noise
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