12

Register 12 · Cryptography primitives.

twelve marks · the evidence record's actual machinery · same construction · 200×200 · integer geometry · currentColor + brass-deep · 12 marks · one of the 17 registers on the Backstaff.

This register is one face of the Backstaff evidence system — the held instrument that holds the measurement engine, maps compliance controls, and engraves every evidence record into a register of record. The full reference library lives at /corpus; the alphabetical view at /corpus/glossary; the operator view at /corpus/switchboard.

API path

Try the evidence path in the sandbox.

The Console shows the sealed evidence and lets anyone verify a record; the Docs carry the endpoints behind it.

Open the Console Read the Docs Read the capability briefing
01 ·

Marks.

12 source marks in this register.
SHA-256 digest#01 · atom

collapsing variable input to a fixed 64-char hash

Reference

twisted-curve signature primitive

Reference
Merkle root#03 · atom

the single brass node atop the tree

Reference
Inclusion proof#04 · atom

path from one leaf to the root

Reference
CID#05 · atom

content identifier · multihash with code prefix

Reference
Hash chain#06 · atom

each block carries the previous block's hash

Reference
Public key#07 · atom

open teeth · meant to be shared

Reference
Private key#08 · atom

sealed teeth · never leaves the holder

Reference
Nonce#09 · atom

a number used once · single-use entropy

Reference

clock face + a signature mark

Reference
Base32#11 · atom

alphanumeric encoding · 5-bit chunks

Reference

addressed by what it is, not where it lives

Reference
API ·

When a regulator asks for proof, hand over records — not assurances.

record the duty · seal the receipt · verify offline

Planisphere records each duty event — an output marked, a disclosure shown, a review made — and seals it into a receipt that verifies offline against our published keys. You send hashes, never content. A record is evidence a third party can check; it is not a certification and not a legal determination.

Open the Console Read the Docs Read the capability briefing

See how a record is checked