Back Door
type: MusicGroup
genre: jazz fusion
genre: progressive rock
description: A back door is a door in the rear of a building. Back door may also refer to: Arts and media Back Door (jazz trio), a British group Porta dos Fundos (literally “Back Door” in Portuguese) Brazilian
popularity: 9
followers: 2174
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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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  date published: 2026-06-19T03:22:39Z
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album: Back Door
  type: MusicAlbum
  date published: 1972
  track: Vienna Breakdown
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    in album: Back Door
      type: MusicAlbum
      date published: 1972
    genre: jazz fusion
    genre: progressive rock
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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 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 0x45e98cd6cd8bcdd50ba86e9184c98c1ece8459610815a883c7a68bd3825e92ea. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USWB10001639.
      date published: 2026-07-20T21:15:01Z
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  track: Slivadiv
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    by artist: Back Door
    in album: Back Door
      type: MusicAlbum
      date published: 1972
    genre: jazz fusion
    genre: progressive rock
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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 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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      date published: 2026-07-05T18:48:28Z
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album: 8th Street Nites
album: Another Fine Mess
album: Activate
album: Walking Blues (Live)
album: BBC in Concert (Live)
album: The Impulse Session
album: Naver Land
album: NAVER LAND
album: Live at Impulse Studios / The BBC (2025 Remaster)

Liveness
type: PropertyValue
value: 0.11

Valence (Positivity)
type: PropertyValue
value: 0.668

Loudness (dB)
type: PropertyValue
value: -11.045

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

8th Street Nites
type: MusicAlbum
date published: 1973

8th Street Nites
type: MusicAlbum
date published: 1973-01-01

Another Fine Mess
type: MusicAlbum
date published: 1975-01-01

Activate
type: MusicAlbum
date published: 1976-01-01

Back Door
type: MusicAlbum
date published: 2014-09-02

Walking Blues (Live)
type: MusicAlbum
date published: 2020-05-01

BBC in Concert (Live)
type: MusicAlbum
date published: 2020-05-22

BBC in Concert (Live)
type: MusicAlbum
date published: 2020-05-22

The Impulse Session
type: MusicAlbum
date published: 2023-09-01

Naver Land
type: MusicAlbum
date published: 2023-12-22

NAVER LAND
type: MusicAlbum
date published: 2023-12-22

Live at Impulse Studios / The BBC (2025 Remaster)
type: MusicAlbum
date published: 2025-06-27