Pith Number

pith:MD5PL6FG

pith:2013:MD5PL6FGS7TPF7XVLPXNURIZIS

not attested not anchored not stored refs pending

A paradox about an atom and a photon

Carlo Maria Scandolo

arxiv:1310.3344 v1 · 2013-10-12 · physics.gen-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{MD5PL6FGS7TPF7XVLPXNURIZIS}

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	2026-05-18T03:10:36.052725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60faf5f8a697e6f2fef55beeda451944a9ecc9aa016feb9fdb06a6965480ebd5

Aliases

arxiv: 1310.3344 · arxiv_version: 1310.3344v1 · doi: 10.48550/arxiv.1310.3344 · pith_short_12: MD5PL6FGS7TP · pith_short_16: MD5PL6FGS7TPF7XV · pith_short_8: MD5PL6FG

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/MD5PL6FGS7TPF7XVLPXNURIZIS \
  | 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: 60faf5f8a697e6f2fef55beeda451944a9ecc9aa016feb9fdb06a6965480ebd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23e5dba88f45c566281fc6391f88dd40b89a3213b6e7aa70c2bb89d5de9848b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2013-10-12T07:29:13Z",
    "title_canon_sha256": "a36e8c48a135f8c860ada3d39898b4029f07cd02fc1203206e3b3a60e6814209"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.3344",
    "kind": "arxiv",
    "version": 1
  }
}