Michael League
type: MusicGroup
description: thumb|right|260px|Michael League (2019) in Aarhus, Denmark Michael League (born April 24, 1984) is an American composer, producer, and multi-instrumentalist. He is the bandleader of instrumental band
popularity: 7
followers: 64
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x7df8f5790a7e49453855a32430dbbb36c1f9223e18a17c644c6707bb72937331
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
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  value: https://artists.proofprofile.net/proofs/artist/04cbe1ae-5879-4e1a-be05-a9b1cde52817.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/04cbe1ae-5879-4e1a-be05-a9b1cde52817
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additional property: OTSVerifyInstructions
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df8f5790a7e49453855a32430dbbb36c1f9223e18a17c644c6707bb72937331. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04cbe1ae-5879-4e1a-be05-a9b1cde52817.json and https://artists.proofprofile.net/proofs/artist/04cbe1ae-5879-4e1a-be05-a9b1cde52817.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x7df8f5790a7e49453855a32430dbbb36c1f9223e18a17c644c6707bb72937331","name":"Michael League","registered_at":"2026-06-15T15:15:56Z","symbol":"NIM0748320","token_address":"0xa3784d114e40124b1d59b556d8f8c12fbfea7bb0","type":"artist","uuid":"04cbe1ae-5879-4e1a-be05-a9b1cde52817"}
album: In Time for Music
  type: MusicAlbum
  date published: 2024-04-02
  track: Be True
    type: MusicRecording
    duration: PT2M13S
    duration ms: 133265
    explicit: false
    by artist: Michael League
    in album: In Time for Music
      type: MusicAlbum
      date published: 2024-04-02
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T00:42:11Z
    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 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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a15d861753ca5010666ca77f48ae3d91dee2ea4dea7f58bbccec6885cf846b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/IT9IH2400441.
      date published: 2026-07-03T00:42:11Z
    audio: Be True
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      additional property: Energy
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      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
        type: PropertyValue
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      additional property: Loudness (dB)
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        value: -10.975
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Leaving Party
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194836
    explicit: false
    by artist: Michael League
    in album: In Time for Music
      type: MusicAlbum
      date published: 2024-04-02
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    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: CopyrightRegisteredAt
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
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      value: 2026-07-18T06:54:37Z
    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 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 0x4b50401d275ebb66fd74f572a074d921872b0f773259c1a01405de7c5bbadbf1. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/IT9IH2400443.
      date published: 2026-07-18T06:54:37Z
    audio: Leaving Party
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
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        value: 0.948
      additional property: Instrumentalness
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      additional property: Liveness
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        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.498
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Loudness (dB)
type: PropertyValue
value: -10.475

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Minor