Pith Number

pith:N5DOQ3N5

pith:2013:N5DOQ3N5YE4LWRT2JTPLYJ7DU2

not attested not anchored not stored refs pending

Measurement of the dispersion of radiation from a steady cosmological source

Lingze Duan, Richard Lieu, T.W.B. Kibble

arxiv:1311.1806 v1 · 2013-11-07 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N5DOQ3N5YE4LWRT2JTPLYJ7DU2}

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	2026-05-18T01:46:33.113082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f46e86dbdc138bb467a4cdebc27e3a684fad2f6d81b6cd441b1cfb857b77f27

Aliases

arxiv: 1311.1806 · arxiv_version: 1311.1806v1 · doi: 10.48550/arxiv.1311.1806 · pith_short_12: N5DOQ3N5YE4L · pith_short_16: N5DOQ3N5YE4LWRT2 · pith_short_8: N5DOQ3N5

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/N5DOQ3N5YE4LWRT2JTPLYJ7DU2 \
  | 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: 6f46e86dbdc138bb467a4cdebc27e3a684fad2f6d81b6cd441b1cfb857b77f27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4594b99a883fc50a2739781379764cbef45013b399b6c4b83808f39bb0f742d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-11-07T20:38:21Z",
    "title_canon_sha256": "fbc410007b51fc07738ea92d70d3a7d875d6debd4125f3db6546192e65aef4df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1806",
    "kind": "arxiv",
    "version": 1
  }
}