Pith Number

pith:6HM3OYR6

pith:2011:6HM3OYR6U63L2MLTJRCBPIUKWO

not attested not anchored not stored refs pending

Preludes to dark energy: Zero-point energy and vacuum speculations

Helge Kragh

arxiv:1111.4623 v1 · 2011-11-20 · physics.hist-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{6HM3OYR6U63L2MLTJRCBPIUKWO}

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	2026-05-18T04:08:02.972422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1d9b7623ea7b6bd31734c4417a28ab39cf78b3998d24636a31026855f06b03d

Aliases

arxiv: 1111.4623 · arxiv_version: 1111.4623v1 · doi: 10.48550/arxiv.1111.4623 · pith_short_12: 6HM3OYR6U63L · pith_short_16: 6HM3OYR6U63L2MLT · pith_short_8: 6HM3OYR6

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/6HM3OYR6U63L2MLTJRCBPIUKWO \
  | 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: f1d9b7623ea7b6bd31734c4417a28ab39cf78b3998d24636a31026855f06b03d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc68fc6dde9a47b80968af235ee1f0270252a596db06f7b196a4a1a5540e5ba4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2011-11-20T11:08:42Z",
    "title_canon_sha256": "5b5ab33e1ba6a9b8b70adfcfec3c0cc617ed31d7c5ff118ad33a5b1a4d3c5d43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.4623",
    "kind": "arxiv",
    "version": 1
  }
}