Pith Number

pith:DLR4BJ5C

pith:2011:DLR4BJ5C4EGB37WL3IFBFUTROH

not attested not anchored not stored refs pending

A terrestrial search for dark contents of the vacuum, such as dark energy, using atom interferometry

Holger Mueller, Martin L. Perl, Ronald J. Adler

arxiv:1101.5626 v1 · 2011-01-28 · astro-ph.CO · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DLR4BJ5C4EGB37WL3IFBFUTROH}

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	2026-05-18T04:05:59.377339Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ae3c0a7a2e10c1dfecbda0a12d27171d56e996724d934643a40518e092dc884

Aliases

arxiv: 1101.5626 · arxiv_version: 1101.5626v1 · doi: 10.48550/arxiv.1101.5626 · pith_short_12: DLR4BJ5C4EGB · pith_short_16: DLR4BJ5C4EGB37WL · pith_short_8: DLR4BJ5C

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/DLR4BJ5C4EGB37WL3IFBFUTROH \
  | 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: 1ae3c0a7a2e10c1dfecbda0a12d27171d56e996724d934643a40518e092dc884

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "208f51237e991c43847313b6ed29cc5afd4203cc506d473b71ac88fa20801bc0",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-28T21:01:47Z",
    "title_canon_sha256": "30d6797f79e9658f07a1979cf9d0c605ca97fd9cf41f742c4b830007e5c6543b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.5626",
    "kind": "arxiv",
    "version": 1
  }
}