Pith Number

pith:VD52I5SK

pith:2016:VD52I5SKOGJFOMCZBDKJ6QM7FX

not attested not anchored not stored refs pending

Axiomatization of if-then-else over possibly non-halting programs and tests

Gayatri Panicker, K. V. Krishna, Purandar Bhaduri

arxiv:1609.00132 v1 · 2016-09-01 · 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{VD52I5SKOGJFOMCZBDKJ6QM7FX}

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	2026-05-18T01:06:27.810384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8fba4764a719257305908d49f419f2dc2bcb1797b1ff2c020df1fa53f5ca378

Aliases

arxiv: 1609.00132 · arxiv_version: 1609.00132v1 · doi: 10.48550/arxiv.1609.00132 · pith_short_12: VD52I5SKOGJF · pith_short_16: VD52I5SKOGJFOMCZ · pith_short_8: VD52I5SK

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/VD52I5SKOGJFOMCZBDKJ6QM7FX \
  | 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: a8fba4764a719257305908d49f419f2dc2bcb1797b1ff2c020df1fa53f5ca378

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3de0bed4db4e1927129e83638b78b065ebc0f435b763b53689b77b0efa003b8c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-09-01T07:35:07Z",
    "title_canon_sha256": "2e5e26332800b4405a6673a380fc67c3bfc526c7e2a5920e7140889a1a39934a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.00132",
    "kind": "arxiv",
    "version": 1
  }
}