Pith Number

pith:USIMKL4I

pith:2014:USIMKL4IDTFE2YGYWIJVGW3QM2

not attested not anchored not stored refs pending

What does it mean for half of an empty cavity to be full?

Andrzej Dragan, Eric G. Brown, Hans Westman, Juan Leon, Marco del Rey

arxiv:1409.4203 v1 · 2014-09-15 · quant-ph · hep-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{USIMKL4IDTFE2YGYWIJVGW3QM2}

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	2026-05-18T01:42:02.647693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a490c52f881cca4d60d8b213535b7066a834a5b99eb41ab6b283fdf62860dbd1

Aliases

arxiv: 1409.4203 · arxiv_version: 1409.4203v1 · doi: 10.48550/arxiv.1409.4203 · pith_short_12: USIMKL4IDTFE · pith_short_16: USIMKL4IDTFE2YGY · pith_short_8: USIMKL4I

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/USIMKL4IDTFE2YGYWIJVGW3QM2 \
  | 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: a490c52f881cca4d60d8b213535b7066a834a5b99eb41ab6b283fdf62860dbd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7635c343f895923e939a29547106e0d93144f8e9c1587bf2652579d3451542b2",
    "cross_cats_sorted": [
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-09-15T10:34:27Z",
    "title_canon_sha256": "18b72aff75b145655f264fe876205eb2dcfc28f15ccbcab5882071f3ec82096f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4203",
    "kind": "arxiv",
    "version": 1
  }
}