Pith Number

pith:7LOCNPNI

pith:2017:7LOCNPNIPCZEE2ZAJPCBTMZVHV

not attested not anchored not stored refs pending

A similarity criterion for sequential programs using truth-preserving partial functions

Abhinav Aggarwal

arxiv:1708.05640 v1 · 2017-08-18 · 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{7LOCNPNIPCZEE2ZAJPCBTMZVHV}

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	2026-05-18T00:37:49.431465Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fadc26bda878b2426b204bc419b3353d451462f33c74053026f747b7434543f0

Aliases

arxiv: 1708.05640 · arxiv_version: 1708.05640v1 · doi: 10.48550/arxiv.1708.05640 · pith_short_12: 7LOCNPNIPCZE · pith_short_16: 7LOCNPNIPCZEE2ZA · pith_short_8: 7LOCNPNI

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/7LOCNPNIPCZEE2ZAJPCBTMZVHV \
  | 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: fadc26bda878b2426b204bc419b3353d451462f33c74053026f747b7434543f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4135e0a10d4bb9f3e9211abd263041fa1829ac5fe63fc0faef089e0dd8b68288",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-08-18T15:10:11Z",
    "title_canon_sha256": "187f4818ee2c3e320f424a322992fbf7d10fe5bf5a1cac0fab240d5ea255d9cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.05640",
    "kind": "arxiv",
    "version": 1
  }
}