Pith Number

pith:P4HEUHEI

pith:2013:P4HEUHEI4O7TYFSCDZK7YZUPWU

not attested not anchored not stored refs pending

Introduction to Functional Grammars

Abhinav Aggarwal

arxiv:1310.2823 v2 · 2013-10-09 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P4HEUHEI4O7TYFSCDZK7YZUPWU}

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	2026-05-18T00:37:58.818802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f0e4a1c88e3bf3c16421e55fc668fb5028e1205219afdcb62a87943ec561d3e

Aliases

arxiv: 1310.2823 · arxiv_version: 1310.2823v2 · doi: 10.48550/arxiv.1310.2823 · pith_short_12: P4HEUHEI4O7T · pith_short_16: P4HEUHEI4O7TYFSC · pith_short_8: P4HEUHEI

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/P4HEUHEI4O7TYFSCDZK7YZUPWU \
  | 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: 7f0e4a1c88e3bf3c16421e55fc668fb5028e1205219afdcb62a87943ec561d3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d77b18606462cbb738142152a2eba4142203b4b632922b5d4389000bea9a86d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2013-10-09T05:15:28Z",
    "title_canon_sha256": "1aabde6b425fe3d9b29ecfd7ab9545a1e8719e37b6178cee3cb5ff584167bbe6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.2823",
    "kind": "arxiv",
    "version": 2
  }
}