Pith Number

pith:NPDRQUT4

pith:2012:NPDRQUT4ELTNC6QIMTX2VMQREH

not attested not anchored not stored refs pending

Earthquake Scenario Reduction by Symmetry Reasoning

Steven Prestwich

arxiv:1207.6514 v1 · 2012-07-27 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NPDRQUT4ELTNC6QIMTX2VMQREH}

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	2026-05-18T03:49:59.131730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bc718527c22e6d17a0864efaab21121c39e4c583602574d0243e24eb1679ef7

Aliases

arxiv: 1207.6514 · arxiv_version: 1207.6514v1 · doi: 10.48550/arxiv.1207.6514 · pith_short_12: NPDRQUT4ELTN · pith_short_16: NPDRQUT4ELTNC6QI · pith_short_8: NPDRQUT4

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/NPDRQUT4ELTNC6QIMTX2VMQREH \
  | 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: 6bc718527c22e6d17a0864efaab21121c39e4c583602574d0243e24eb1679ef7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38fd0f12acf54e6c88df8179b023e4bd46b41a24596adc26f16ce2d418a61022",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2012-07-27T11:14:23Z",
    "title_canon_sha256": "791127b0137a0a0d4771482e743abcc7b0a8134825f07822de51572056262117"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.6514",
    "kind": "arxiv",
    "version": 1
  }
}