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Hash, not file
Each document's fingerprint anchors to Bitcoin. The files never leave the data room.
Satohash brings independently verifiable proof of existence to the work that can't afford to trust — without the document ever leaving your control.
Roughly two-thirds of M&A data breaches happen during diligence — when confidential material moves across many systems and people. The integrity problem is real and quantified.
Each document's fingerprint anchors to Bitcoin. The files never leave the data room.
Buyers confirm files match the seller's originals — cryptographically, without a middleman.
Proof a version existed before a closing date. Unaltered, verifiable forever.
Live Satohash proves document integrity today. Not yet The access/audit-log extension (who saw what, when) is a product build — we say so, we don't claim it.
Trust instruments, wills, governance charters, property records — the documents that define ownership and intent. Too often fragmented, lost, or held by a vendor that disappears.
An .ots anchor proves a document's exact state at a date — verifiable decades later.
The proof lives on Bitcoin, not in an advisor firm's vault or a SaaS server.
Only a hash touches the chain. The will, deed, or trust never leaves your family's control.
Wealth-transfer and "three-generation curse" statistics are directional industry context, not hard fact — we cite them as such, never overstate them.
Su documento nunca sale de su dispositivo. Solo una huella digital llega a Bitcoin. Evidencia de apoyo, admisible junto a cada sistema de identidad regulado.
En BR, MX, AR, CL, CO, PE y ES, la evidencia electrónica es admisible — no se rechaza por ser electrónica.
La identidad es la capa regulada (ICP-Brasil, FEA/NOM-151, firma digital). Satohash aporta la capa de tiempo/existencia independiente.
Satohash para el rastro de procedencia sellado; notario para el acto final cuando la ley lo exige.
Honesto Admisible, no se presume exacto. No afirmamos cumplimiento de ICP-Brasil, NOM-151 ni eIDAS. Nunca usamos la palabra «certificado».
Seu documento nunca sai do seu dispositivo. Apenas uma impressão digital chega ao Bitcoin. Prova de apoio, admissível junto a cada sistema de identidade regulado.
No Brasil e na região, a evidência eletrônica é admissível — não é rejeitada por ser eletrônica.
A identidade é a camada regulada (ICP-Brasil, FEA, firma digital). Satohash fornece a camada independente de tempo/existência.
Satohash para o rastro de proveniência com carimbo; cartório para o ato final quando a lei exigir.
Honesto Admissível, não se presume exato. Não afirmamos conformidade com ICP-Brasil, NOM-151 ou eIDAS. Nunca usamos a palavra «certificado».
Retention, integrity, and timeliness: records must exist, be unchanged, and be provable as of the relevant fiscal period. A Bitcoin anchor proves the exact state of a supporting record — years after the fact.
Prove a policy, ledger export, or return draft existed in a specific form by block N.
Never stamp raw records with PII or TPINs to a public chain — hash only, or a private calendar.
Strengthens the evidence layer. It does not file returns or satisfy a retention statute.
Live Existence & integrity-at-time. Honest Not tax-law compliance — regulators weigh evidence, they don't certify timestamps.
The privacy-preserving integrity anchor — hash on-chain, file never leaves the device. The differentiator vs. document SaaS that stores your full files.
"If a party claims a contract was altered, the cryptographic timestamp ends the argument."
Portable .ots. Verify with open tools forever — even if we vanished.
REST API, webhooks, SDKs, AI-agent guides. Free developer stamps to onboard.
Honest Enterprise offers (SLA, white-label, custom webhooks, volume) belong to the paid tiers — we don't claim readiness we haven't shipped.
Every claim carries when it was last confirmed. Old data renders amber, never fresh green. Honest stale beats confident wrong.
Live KPIs come from /metrics.json — never fabricated.
M&A data rooms, family offices, Latin markets, tax & compliance, enterprise — five serious lanes, one honest anchor: proof of what existed, when, verifiable forever.
Stamp your first proof free ↗F.O.S.S. · Give A Bit family · [email protected] · Safe Harbour: educational & informational only, not legal/financial/investment advice