SAM
type: MusicGroup
description: REDIRECT Sam
popularity: 5
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd750213324fa90721332c5f0808379a1e7a9abc2c8f16d030faa93d2d99b5c2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b02a6657-c740-4c0e-a7a7-ed01ee5e3723.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b02a6657-c740-4c0e-a7a7-ed01ee5e3723.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b02a6657-c740-4c0e-a7a7-ed01ee5e3723
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
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 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 0xbd750213324fa90721332c5f0808379a1e7a9abc2c8f16d030faa93d2d99b5c2. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b02a6657-c740-4c0e-a7a7-ed01ee5e3723.json and https://artists.proofprofile.net/proofs/artist/b02a6657-c740-4c0e-a7a7-ed01ee5e3723.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
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  type: MusicAlbum
  date published: 2002-04-04
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  type: MusicAlbum
  date published: 2002-06-01
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  type: MusicAlbum
  date published: 2002-11-10
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  date published: 2010-11-01
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  type: MusicAlbum
  date published: 2011-05-04
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  type: MusicAlbum
  date published: 2012-02-01
album: I Did It, Man - Critza Remix
  type: MusicAlbum
  date published: 2013-03-15
album: Throwback Thursday
  type: MusicAlbum
  date published: 2015-06-11