Pith Number

pith:OUUDPI32

pith:2014:OUUDPI32E5DPMWHRLDNKBWUQXY

not attested not anchored not stored refs pending

Beautiful Structures: An Appreciation of the Contributions of Alan Selman

Lane A. Hemaspaandra

arxiv:1406.4106 v2 · 2014-06-16 · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OUUDPI32E5DPMWHRLDNKBWUQXY}

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	2026-05-18T02:49:38.301640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

752837a37a2746f658f158daa0da90be0971d5084e00b09b1ecb17eb6da49fd7

Aliases

arxiv: 1406.4106 · arxiv_version: 1406.4106v2 · doi: 10.48550/arxiv.1406.4106 · pith_short_12: OUUDPI32E5DP · pith_short_16: OUUDPI32E5DPMWHR · pith_short_8: OUUDPI32

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/OUUDPI32E5DPMWHRLDNKBWUQXY \
  | 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: 752837a37a2746f658f158daa0da90be0971d5084e00b09b1ecb17eb6da49fd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8fe7a2a094d0b6fdd7501789ed75f1e47aa1f0a1163938c716b420eeb9b2db4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-06-16T19:16:33Z",
    "title_canon_sha256": "5520294a1bdaed727a0cad0cd739a5a82ce56a6df6f78d770fc24a7d6beec8af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4106",
    "kind": "arxiv",
    "version": 2
  }
}