Party City
type: MusicGroup
description: New AmScan PC LLC, formerly known as Party City Holdco Inc., is an American chain of party supply stores founded in 1986 by Steve Mandell in East Hanover, New Jersey. Party City's headquarters are in
popularity: 15
followers: 579
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additional property: CopyrightChainExplorerURL
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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 0x504c872e6f62ba700161245ea63cea119841531fee15ad887f794fb4f9863edd. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8886deb-1e93-495b-a0b6-ec76977630e0.json and https://artists.proofprofile.net/proofs/artist/e8886deb-1e93-495b-a0b6-ec76977630e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:39:18Z
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album: Great Movie Songs
  type: MusicAlbum
  date published: 2013-09-03
album: Party City Karaoke: Pop Radio Party, Vol. 4
  type: MusicAlbum
  date published: 2013-09-12
album: Party City Karaoke: Pop Radio Party
  type: MusicAlbum
  date published: 2013-09-12
album: Party City Karaoke: Great 80's Party, Vol. 6
  type: MusicAlbum
  date published: 2013-09-16
album: Party City Karaoke - Rock Radio Party, Vol. 3
  type: MusicAlbum
  date published: 2014-01-13
album: Party City Karaoke: Country Legends
  type: MusicAlbum
  date published: 2014-01-14
album: Party City Karaoke: 50's & 60's
  type: MusicAlbum
  date published: 2014-01-15
album: Party City Karaoke: Da Club Hits, Vol. 2
  type: MusicAlbum
  date published: 2014-01-15
album: Party City Karaoke: Da Club Hits
  type: MusicAlbum
  date published: 2014-01-15
album: Party City Karaoke: Top Singles 9
  type: MusicAlbum
  date published: 2014-03-25
album: Party City Karaoke: Top Singles 8
  type: MusicAlbum
  date published: 2014-03-25
album: Party City Party Music
  type: MusicAlbum
  date published: 2014-04-01
album: Party City Party Music
  type: MusicAlbum
  date published: 2014-04-01
album: Party City Luau Party Music
  type: MusicAlbum
  date published: 2014-04-01
album: Party City Luau Party Music
  type: MusicAlbum
  date published: 2014-04-01
album: Party City Cinco De Mayo Party Music
  type: MusicAlbum
  date published: 2014-04-01
album: Party City Kids Birthday Party Music
  type: MusicAlbum
  date published: 2014-04-01
album: Party City Happy Birthday Party Music
  type: MusicAlbum
  date published: 2014-04-01
album: Party City Halloween Fright Flicks and Scary Sound Effects
  type: MusicAlbum
  date published: 2014-10-01
album: Party City Kids Halloween Party Music
  type: MusicAlbum
  date published: 2014-10-01
album: Party City Halloween Party Music
  type: MusicAlbum
  date published: 2014-10-01
album: Party City Thanksgiving Dinner Party Music
  type: MusicAlbum
  date published: 2014-10-17
album: Party City Kids Christmas Party Music
  type: MusicAlbum
  date published: 2014-10-21
  track: Jingle Bells (Kids Vocals)
    type: MusicRecording
    duration: PT2M9S
    duration ms: 129541
    explicit: false
    by artist: Party City
    in album: Party City Kids Christmas Party Music
      type: MusicAlbum
      date published: 2014-10-21
    isrc code: US85C0704430
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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 0xa42ba0fbe979216634008c1f96e5bb3aff28c0ea44920fe3941951a4fc1c396d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US85C0704430.
      date published: 2026-07-03T21:18:05Z
    audio: Jingle Bells (Kids Vocals)
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
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        value: 8
      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.387
      additional property: Energy
        type: PropertyValue
        value: 0.753
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.267
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
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        value: 0.08
      additional property: Valence (Positivity)
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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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album: Party City Happy Hanukkah Party Music
  type: MusicAlbum
  date published: 2014-10-21
album: Party City Christmas Party Music
  type: MusicAlbum
  date published: 2014-10-21
album: Party City New Year's Party Music
  type: MusicAlbum
  date published: 2014-11-24
album: Party City Basketball: Sports Party Music
album: Party City Happy Valentine's Day
album: Party City Kids Valentine's Day Songs
album: Party City Football: Sports Party Music
album: Luau Party Music
album: Kids Birthday Party Music
album: Party City Mardi Gras Party Music
album: Party City St. Patrick's Day Party Music
album: Party City Eggcellent Easter Songs
album: Party City Baseball: Sports Party Music
album: Kids Christmas Party Music

Party City Basketball: Sports Party Music
type: MusicAlbum
date published: 2014-12-10

Party City Happy Valentine's Day
type: MusicAlbum
date published: 2014-12-15

Party City Kids Valentine's Day Songs
type: MusicAlbum
date published: 2014-12-15

Party City Football: Sports Party Music
type: MusicAlbum
date published: 2014-12-16

Luau Party Music
type: MusicAlbum
date published: 2015-01-01

Kids Birthday Party Music
type: MusicAlbum
date published: 2015-01-01

Luau Party Music
type: MusicAlbum
date published: 2015-01-01

Kids Birthday Party Music
type: MusicAlbum
date published: 2015-01-01

Party City Mardi Gras Party Music
type: MusicAlbum
date published: 2015-01-15

Party City St. Patrick's Day Party Music
type: MusicAlbum
date published: 2015-03-10

Party City Eggcellent Easter Songs
type: MusicAlbum
date published: 2015-04-01

Party City Baseball: Sports Party Music
type: MusicAlbum
date published: 2015-04-28

Kids Christmas Party Music
type: MusicAlbum
date published: 2015-12-18