Pith Number

pith:DUM2UZ2Z

pith:2012:DUM2UZ2ZFD4YK72THXOZ3UTVJQ

not attested not anchored not stored refs pending

Light propagation with non-minimal couplings in a two-component cosmic dark fluid with an Archimedean-type force and unlighted cosmological epochs

Alexander B. Balakin, Jos\'e P. S. Lemos, Vladimir V. Bochkarev

arxiv:1201.2948 v1 · 2012-01-13 · gr-qc · astro-ph.CO · 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{DUM2UZ2ZFD4YK72THXOZ3UTVJQ}

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	2026-05-18T03:41:21.492341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d19aa675928f9857f533ddd9dd2754c2c2c17b0b54caffbf7a70c8e374471f1

Aliases

arxiv: 1201.2948 · arxiv_version: 1201.2948v1 · doi: 10.48550/arxiv.1201.2948 · pith_short_12: DUM2UZ2ZFD4Y · pith_short_16: DUM2UZ2ZFD4YK72T · pith_short_8: DUM2UZ2Z

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/DUM2UZ2ZFD4YK72THXOZ3UTVJQ \
  | 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: 1d19aa675928f9857f533ddd9dd2754c2c2c17b0b54caffbf7a70c8e374471f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11ab8d53b065ad7fc6e88c7d5a31bc346a4950121c39205278fc3d55af169d53",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-01-13T21:02:20Z",
    "title_canon_sha256": "7a1188a27611acd0b3103dcd590acee013089b720aa96a87dfcaaa084adafd7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2948",
    "kind": "arxiv",
    "version": 1
  }
}