Pith Number

pith:YFIY4CWC

pith:2014:YFIY4CWC4D5RVDY2KKNNUBIC3T

not attested not anchored not stored refs pending

Concurrent Kleene Algebra of Partial Strings

Alex Horn, Jade Alglave

arxiv:1407.0385 v4 · 2014-07-01 · 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{YFIY4CWC4D5RVDY2KKNNUBIC3T}

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	2026-05-18T02:39:55.450387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1518e0ac2e0fb1a8f1a529ada0502dce4634f4a513e7908577160749854532e

Aliases

arxiv: 1407.0385 · arxiv_version: 1407.0385v4 · doi: 10.48550/arxiv.1407.0385 · pith_short_12: YFIY4CWC4D5R · pith_short_16: YFIY4CWC4D5RVDY2 · pith_short_8: YFIY4CWC

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/YFIY4CWC4D5RVDY2KKNNUBIC3T \
  | 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: c1518e0ac2e0fb1a8f1a529ada0502dce4634f4a513e7908577160749854532e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba00fc7732b89417f701179c62093e57333230bb20a537a6b2d16670f89600e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2014-07-01T19:59:41Z",
    "title_canon_sha256": "49e5a3f86b932eaccf9b7eca3313b50e5746e93e68ba81c4ee08d0cda902202b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.0385",
    "kind": "arxiv",
    "version": 4
  }
}