Pith Number

pith:FOACAHLQ

pith:2012:FOACAHLQ5WTHXTEECVIKBAHCOD

not attested not anchored not stored refs pending

Luge Track Safety

Mont Hubbard

arxiv:1212.4901 v1 · 2012-12-20 · physics.class-ph · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FOACAHLQ5WTHXTEECVIKBAHCOD}

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	2026-05-18T03:38:04.421581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b80201d70eda67bcc841550a080e270d4a463d93504ec4a32149c12172efd9d

Aliases

arxiv: 1212.4901 · arxiv_version: 1212.4901v1 · doi: 10.48550/arxiv.1212.4901 · pith_short_12: FOACAHLQ5WTH · pith_short_16: FOACAHLQ5WTHXTEE · pith_short_8: FOACAHLQ

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/FOACAHLQ5WTHXTEECVIKBAHCOD \
  | 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: 2b80201d70eda67bcc841550a080e270d4a463d93504ec4a32149c12172efd9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29450a44a78077177a26cc775a1270c6175c56a807150ced74ba7369cdded65a",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2012-12-20T01:28:29Z",
    "title_canon_sha256": "94df2ce329a237c664c607299c769ca1d648a820a6675073c66ff62e0436e7a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.4901",
    "kind": "arxiv",
    "version": 1
  }
}