Ibilaldia
type: MusicGroup
description: Ibilaldia (), meaning trip, journey, or march in English, is a festival organized every year the last Sunday of May or first of June to help the ikastolak (schools in the Basque language) in Biscay, B
popularity: 7
followers: 72
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f7270d29d893dc3e93471ed73ca0a045fbd2ba6f3be92d4fef4e4d60ff62df. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09a8fee6-427c-4d31-8a10-07b54bbb6147.json and https://artists.proofprofile.net/proofs/artist/09a8fee6-427c-4d31-8a10-07b54bbb6147.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
album: Egunero Alkarregaz
  type: MusicAlbum
  date published: 2017-05-01
album: TAUP!
  type: MusicAlbum
  date published: 2018-05-01
album: Haratzago
  type: MusicAlbum
  date published: 2019-05-01
album: Hel Horri
  type: MusicAlbum
  date published: 2020-05-01
album: Kala Kalata!
  type: MusicAlbum
  date published: 2021-05-07
album: Erro Harri Har!
  type: MusicAlbum
  date published: 2022-04-07
track: Turrun Hotsa

Turrun Hotsa
type: MusicRecording
duration: PT3M55S
duration ms: 235772
explicit: false
by artist: Ibilaldia
by artist: Axular Arizmendi
by artist: Eñaut Elorrieta
by artist: Aiora Renteria
in album: Turrun Hotsa
  type: MusicAlbum
  date published: 2023-02-23
isrc code: ES21A2300015
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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
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315e43783e423bcac661ed20d42b9be8d5e380cf4a6382bda4311b105e6aec38. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES21A2300015.
  date published: 2026-06-13T13:32:09Z
audio: Turrun Hotsa
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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    type: PropertyValue
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  additional property: Danceability
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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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