The A-Sides
type: MusicGroup
description: The A-Sides were an American indie rock band from Philadelphia, Pennsylvania. They formed in 2002 and consisted of Jon Barthmus (guitars/vocals), Charlie Cottone (guitars/vocals), Christopher Doyle (k
popularity: 4
followers: 3171
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4425e0149fe0b600904605023a85db3c2596db9b012c70e8824f8fe1b9f2fc69. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fc1a0e9-9427-4310-bc5c-5696359c97ad.json and https://artists.proofprofile.net/proofs/artist/9fc1a0e9-9427-4310-bc5c-5696359c97ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
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album: Hello, Hello
  type: MusicAlbum
  date published: 2005-03-29
album: Hello, Hello
  type: MusicAlbum
  date published: 2006-03-28
album: Silver Storms
  type: MusicAlbum
  date published: 2007-01-01
album: Silver Storms
  type: MusicAlbum
  date published: 2007-09-18
album: Silver Storms
  type: MusicAlbum
  date published: 2007-09-18
  track: We're the Trees
    type: MusicRecording
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    by artist: The A-Sides
    in album: Silver Storms
      type: MusicAlbum
      date published: 2007-09-18
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    additional property: OTSTimestamp
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    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a940aa329ce272c36305247d3ff4649e5ae7baa5d258f96236d808368fe2fba. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USVR90746503.
      date published: 2026-07-16T19:42:29Z
    audio: We're the Trees
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
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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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      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Key Name
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        value: D
      additional property: Mode Name
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        value: Major
album: Silver Storms
  type: MusicAlbum
  date published: 2007-09-18