Pith Number

pith:UMDWZY5G

pith:2014:UMDWZY5GVQSSGVS7I4RKDYFIWR

not attested not anchored not stored refs pending

Measuring the bulk Lorentz factors of gamma-ray bursts with Fermi

Fang-Kun Peng, Pak-Hin Thomas Tam, Qing-Wen Tang, Xiang-Yu Wang

arxiv:1412.3342 v3 · 2014-12-10 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UMDWZY5GVQSSGVS7I4RKDYFIWR}

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	2026-05-18T02:18:48.957088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3076ce3a6ac2523565f4722a1e0a8b44a5387caaf401762b9ff0e1c6836a263

Aliases

arxiv: 1412.3342 · arxiv_version: 1412.3342v3 · doi: 10.48550/arxiv.1412.3342 · pith_short_12: UMDWZY5GVQSS · pith_short_16: UMDWZY5GVQSSGVS7 · pith_short_8: UMDWZY5G

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/UMDWZY5GVQSSGVS7I4RKDYFIWR \
  | 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: a3076ce3a6ac2523565f4722a1e0a8b44a5387caaf401762b9ff0e1c6836a263

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4e0758b10dcf31fa1b7deacd34b109a8cefd6bb7058b3bf8c7a9be0e3200af6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-12-10T15:48:43Z",
    "title_canon_sha256": "df2129e2ac711c347464c3dc13fd092671bc6f427d8fa8c0fcb0a39c31b3cd04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.3342",
    "kind": "arxiv",
    "version": 3
  }
}