Pith Number

pith:BERQFXWG

pith:2010:BERQFXWG63SHNDT6U4P5HQ3FDF

not attested not anchored not stored refs pending

Initial Semantics for higher-order typed syntax in Coq

Benedikt Ahrens, Julianna Zsido

arxiv:1012.1010 v3 · 2010-12-05 · cs.LO · math.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{BERQFXWG63SHNDT6U4P5HQ3FDF}

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	2026-05-18T04:12:54.850368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

092302dec6f6e4768e7ea71fd3c365197e62ecc374076b20f3ca22bc602d0187

Aliases

arxiv: 1012.1010 · arxiv_version: 1012.1010v3 · doi: 10.48550/arxiv.1012.1010 · pith_short_12: BERQFXWG63SH · pith_short_16: BERQFXWG63SHNDT6 · pith_short_8: BERQFXWG

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/BERQFXWG63SHNDT6U4P5HQ3FDF \
  | 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: 092302dec6f6e4768e7ea71fd3c365197e62ecc374076b20f3ca22bc602d0187

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e25682ec7b9702fbe5ba7af52e7ba94a300140343dacfc3655b41a6353fb15b",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2010-12-05T16:27:53Z",
    "title_canon_sha256": "f767609309bce9cf43c680d13cba66798e6b31181a05834821d2573892cf0649"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.1010",
    "kind": "arxiv",
    "version": 3
  }
}