Sisma
type: MusicGroup
popularity: 3
followers: 188
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x07f9c2acc8633f75e2aee343d2a192fe091b2d32af8a71d5a5eb56eac704636c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d33753b7-99fd-477b-9402-e2c237149d3f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d33753b7-99fd-477b-9402-e2c237149d3f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d33753b7-99fd-477b-9402-e2c237149d3f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f9c2acc8633f75e2aee343d2a192fe091b2d32af8a71d5a5eb56eac704636c. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d33753b7-99fd-477b-9402-e2c237149d3f.json and https://artists.proofprofile.net/proofs/artist/d33753b7-99fd-477b-9402-e2c237149d3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
album: Panorama
  type: MusicAlbum
  date published: 2003-06-27
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  type: MusicAlbum
  date published: 2007-01-01
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  type: MusicAlbum
  date published: 2007-06-21
album: Da Mixtape
  type: MusicAlbum
  date published: 2008-05-01
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  type: MusicAlbum
  date published: 2009-01-01
album: Al sud delle alpi
  type: MusicAlbum
  date published: 2010-01-01
album: Jack Casanova
  type: MusicAlbum
  date published: 2010-05-23
album: Olympic
  type: MusicAlbum
  date published: 2010-08-23
album: Leggenda granata
  type: MusicAlbum
  date published: 2011-11-03
album: C'est fresh
  type: MusicAlbum
  date published: 2012-07-23
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  type: MusicAlbum
  date published: 2012-09-23
album: Pseudocriminalità 2012
  type: MusicAlbum
  date published: 2012-10-23
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  type: MusicAlbum
  date published: 2016-12-01
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  type: MusicAlbum
  date published: 2020-03-10
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2020-03-26
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  type: MusicAlbum
  date published: 2020-10-23
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  type: MusicAlbum
  date published: 2022-09-23
album: Amos
  type: MusicAlbum
  date published: 2023-11-23
album: LUPI ET OVES
  type: MusicAlbum
  date published: 2025-05-25