Los Muñequitos de Matanzas
type: MusicGroup
genre: latin jazz
genre: timba
description: Los Muñequitos de Matanzas is a Cuban rumba ensemble from the city of Matanzas.[ Allmusic] The group was established in 1952 as Conjunto Guaguancó Matancero and released their first LP in 1956 through
popularity: 2
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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 0x6885a0bdaf4491a6634f7dcd3936dbbf2c8756535a1c7390d15f31b26252f3e2. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d88c387-c7ab-4067-836e-e84530ef5693.json and https://artists.proofprofile.net/proofs/artist/5d88c387-c7ab-4067-836e-e84530ef5693.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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album: De Palo Pa' Rumba
  type: MusicAlbum
  date published: 2009-01-01