Pith Number

pith:UGUXRIZO

pith:2013:UGUXRIZOTOODSJB35QGEJCUXHQ

not attested not anchored not stored refs pending

Reachability under Contextual Locking

CNRS), ENS Cachan, Mahesh Viswanathan (University of Illinois), P. Madhusudan (University of Illinois), Remi Bonnet (LSV, Rohit Chadha (University of Missouri)

arxiv:1308.2349 v3 · 2013-08-10 · 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{UGUXRIZOTOODSJB35QGEJCUXHQ}

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	2026-05-18T01:37:37.942961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1a978a32e9b9c39243bec0c448a973c0d4ffaabdb9283f18eb2b2169e572d3f

Aliases

arxiv: 1308.2349 · arxiv_version: 1308.2349v3 · doi: 10.48550/arxiv.1308.2349 · pith_short_12: UGUXRIZOTOOD · pith_short_16: UGUXRIZOTOODSJB3 · pith_short_8: UGUXRIZO

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/UGUXRIZOTOODSJB35QGEJCUXHQ \
  | 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: a1a978a32e9b9c39243bec0c448a973c0d4ffaabdb9283f18eb2b2169e572d3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfcc8405d0021f9b18fa901791f207f4ca640c67ec3980d7f9411047f751f5e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-08-10T22:43:03Z",
    "title_canon_sha256": "377a34c638344ba5bdbd4c9964e9c8138f6c4a6bd4c5e0d3985445c984f912f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2349",
    "kind": "arxiv",
    "version": 3
  }
}