Harry Square
type: MusicGroup
genre: progressive trance
genre: trance
popularity: 7
followers: 708
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93e51c97f01fdd59f2f5bff0df181fc73827e96052e9e3d22c8c1edf015284d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953976
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953976
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b3de881-e5de-45cb-9217-64b3d50b2181.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b3de881-e5de-45cb-9217-64b3d50b2181.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2b3de881-e5de-45cb-9217-64b3d50b2181
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:55:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x93e51c97f01fdd59f2f5bff0df181fc73827e96052e9e3d22c8c1edf015284d1","name":"Harry Square","registered_at":"2026-06-16T04:35:22Z","symbol":"NIM0939137","token_address":"0xbdb68249c13405c39b4e70a336e3ed1cee176a5d","type":"artist","uuid":"2b3de881-e5de-45cb-9217-64b3d50b2181"}
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 0x93e51c97f01fdd59f2f5bff0df181fc73827e96052e9e3d22c8c1edf015284d1. Chain 2 (Bitcoin): anchored in block 953976 (2026-06-16T16:55:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b3de881-e5de-45cb-9217-64b3d50b2181.json and https://artists.proofprofile.net/proofs/artist/2b3de881-e5de-45cb-9217-64b3d50b2181.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:55:36Z
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album: Kickstart E.P
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type: MusicAlbum
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type: MusicAlbum
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Maverick EP
type: MusicAlbum
date published: 2020-11-06

The Sound of 2021 Sampler 2
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date published: 2021-03-12

Mountainside
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date published: 2021-07-16

Mountainside
type: MusicAlbum
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Euphemia
type: MusicAlbum
date published: 2021-11-05

Euphemia
type: MusicAlbum
date published: 2021-11-05

Two Sides EP
type: MusicAlbum
date published: 2022-08-12

Two Sides
type: MusicAlbum
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The Sound of 2022 Sampler 6
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The Sound of 2023 Sampler 4
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Mila
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AS Artist Spotlight: Harry Square
type: MusicAlbum
date published: 2023-10-17