ear training
type: MusicGroup
description: In music, ear training is the study and practice in which musicians learn various aural skills to detect and identify pitches, intervals, melody, chords, rhythms, solfeges, and other basic elements of
popularity: 2
followers: 87
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x24594b9515fdc93b389abc591ca3113a5ecbf3bec3ec6e01e8335b4eca383206
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30f3d637-8548-456f-b406-df9a77af55e0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30f3d637-8548-456f-b406-df9a77af55e0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/30f3d637-8548-456f-b406-df9a77af55e0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x24594b9515fdc93b389abc591ca3113a5ecbf3bec3ec6e01e8335b4eca383206","name":"ear training","registered_at":"2026-06-16T06:34:24Z","symbol":"NIM0967581","token_address":"0x68f1f41d6f9d673efb86dd97ad4e8ba324aedebb","type":"artist","uuid":"30f3d637-8548-456f-b406-df9a77af55e0"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24594b9515fdc93b389abc591ca3113a5ecbf3bec3ec6e01e8335b4eca383206. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30f3d637-8548-456f-b406-df9a77af55e0.json and https://artists.proofprofile.net/proofs/artist/30f3d637-8548-456f-b406-df9a77af55e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:04:35Z
  text: {"copyright_id":"0x24594b9515fdc93b389abc591ca3113a5ecbf3bec3ec6e01e8335b4eca383206","name":"ear training","registered_at":"2026-06-16T06:34:24Z","symbol":"NIM0967581","token_address":"0x68f1f41d6f9d673efb86dd97ad4e8ba324aedebb","type":"artist","uuid":"30f3d637-8548-456f-b406-df9a77af55e0"}
album: ear training
  type: MusicAlbum
  date published: 2024-01-02
album: ear training
  type: MusicAlbum
  date published: 2024-01-31
album: ear training 2
  type: MusicAlbum
  date published: 2025-06-06