Pith Number

pith:4A254RX6

pith:2016:4A254RX64HGYAVYZTPWZXMUDFR

not attested not anchored not stored refs pending

Synthesizing Program Input Grammars

Alex Aiken, Osbert Bastani, Percy Liang, Rahul Sharma

arxiv:1608.01723 v2 · 2016-08-05 · 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{4A254RX64HGYAVYZTPWZXMUDFR}

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	2026-05-18T00:42:17.825344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e035de46fee1cd8057199bed9bb2832c7c52aa52a64efa3799f4a7253ae7ba7c

Aliases

arxiv: 1608.01723 · arxiv_version: 1608.01723v2 · doi: 10.48550/arxiv.1608.01723 · pith_short_12: 4A254RX64HGY · pith_short_16: 4A254RX64HGYAVYZ · pith_short_8: 4A254RX6

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/4A254RX64HGYAVYZTPWZXMUDFR \
  | 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: e035de46fee1cd8057199bed9bb2832c7c52aa52a64efa3799f4a7253ae7ba7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfcce645c3684bed9ce7f281cb283283e9abd051b23295ef5a6b3f9e840c4d79",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2016-08-05T00:13:42Z",
    "title_canon_sha256": "368a423d352a0ac0b49a591ccd4852f5ebde33c85212765b6c61d3e84e84db9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.01723",
    "kind": "arxiv",
    "version": 2
  }
}