Pith Number

pith:JZR7SUNZ

pith:2012:JZR7SUNZK6QK5SVFDTVUNFASYU

not attested not anchored not stored refs pending

Initiality for Typed Syntax and Semantics

Benedikt Ahrens

arxiv:1206.4547 v1 · 2012-06-20 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JZR7SUNZK6QK5SVFDTVUNFASYU}

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	2026-05-18T03:47:00.735516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e63f951b957a0aecaa51ceb469412c5353575b2e9e7e4f0f1ff76a240df9316

Aliases

arxiv: 1206.4547 · arxiv_version: 1206.4547v1 · doi: 10.48550/arxiv.1206.4547 · pith_short_12: JZR7SUNZK6QK · pith_short_16: JZR7SUNZK6QK5SVF · pith_short_8: JZR7SUNZ

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/JZR7SUNZK6QK5SVFDTVUNFASYU \
  | 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: 4e63f951b957a0aecaa51ceb469412c5353575b2e9e7e4f0f1ff76a240df9316

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "157d274b95fbf7404735f1d6f43df02090682d3bdf1f16e815dd1e03688c2263",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-06-20T16:30:06Z",
    "title_canon_sha256": "c39720fb7ca7842968e7a3c58cab1f5788a508f89f1f7e830a2457555ea1f640"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.4547",
    "kind": "arxiv",
    "version": 1
  }
}