Pith Number

pith:LMGHMIHD

pith:2006:LMGHMIHD2LRHNICDJBAHYLS6D2

not attested not anchored not stored refs pending

Cinema, Fermi Problems, & General Education

C.J. Efthimiou, R. Llewellyn

arxiv:physics/0608058 v2 · 2006-08-05 · physics.ed-ph · physics.pop-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{LMGHMIHD2LRHNICDJBAHYLS6D2}

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	2026-05-18T01:38:06.734301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b0c7620e3d2e276a04348407c2e5e1e832c7bf80e22359586c994206d308abe

Aliases

arxiv: physics/0608058 · arxiv_version: physics/0608058v2 · doi: 10.48550/arxiv.physics/0608058 · pith_short_12: LMGHMIHD2LRH · pith_short_16: LMGHMIHD2LRHNICD · pith_short_8: LMGHMIHD

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/LMGHMIHD2LRHNICDJBAHYLS6D2 \
  | 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: 5b0c7620e3d2e276a04348407c2e5e1e832c7bf80e22359586c994206d308abe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80195e6f1456e1f5e17c144a07310edcb7656ca29c46abdc7ba3e2fd2a0f1dce",
    "cross_cats_sorted": [
      "physics.pop-ph",
      "physics.soc-ph"
    ],
    "license": "",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2006-08-05T06:19:58Z",
    "title_canon_sha256": "d9a78f26e260ce9808ddfff125b0041d9587754a249606c3e1684e2ebcfcee09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0608058",
    "kind": "arxiv",
    "version": 2
  }
}