Pith Number

pith:J4RIPD7M

pith:2021:J4RIPD7M7GFZM4WBPEVKIM26OY

not attested not anchored not stored refs pending

Ergo -- a programming language for Smart Legal Contracts

Dan Selman, Eason Chen, J\'er\^ome Sim\'eon, Niall Roche, Walter Hernandez

arxiv:2112.07064 v2 · 2021-12-13 · cs.CY · cs.PL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J4RIPD7M7GFZM4WBPEVKIM26OY}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T03:43:26.390579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f22878fecf98b9672c1792aa4335e7600d9e08d2cd5ddcf1919f0a8dde879f9

Aliases

arxiv: 2112.07064 · arxiv_version: 2112.07064v2 · doi: 10.48550/arxiv.2112.07064 · pith_short_12: J4RIPD7M7GFZ · pith_short_16: J4RIPD7M7GFZM4WB · pith_short_8: J4RIPD7M

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/J4RIPD7M7GFZM4WBPEVKIM26OY \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 4f22878fecf98b9672c1792aa4335e7600d9e08d2cd5ddcf1919f0a8dde879f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c012fc800af87ad6c49a1bac45d35038776a4ff4b094b1cd7af87f85bd3be404",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2021-12-13T23:38:06Z",
    "title_canon_sha256": "aa423640e21d78da0da351817f5c3890e5bcc4fa23f724edd2330cbcf5832aba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.07064",
    "kind": "arxiv",
    "version": 2
  }
}