Pith Number

pith:NRTFRZR4

pith:2015:NRTFRZR4WCU6XOPRHATVLB7RNH

not attested not anchored not stored refs pending

An unexpectedly low-redshift excess of Swift gamma-ray burst rate

F. Y. Wang (NJU), H. Yu (NJU), K. S. Cheng (HKU), Z. G. Dai (NJU)

arxiv:1504.01812 v2 · 2015-04-08 · astro-ph.HE · 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{NRTFRZR4WCU6XOPRHATVLB7RNH}

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	2026-05-18T02:03:33.081712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c6658e63cb0a9ebb9f138275587f169f586df9d3498038b1b6281b6d43e84f7

Aliases

arxiv: 1504.01812 · arxiv_version: 1504.01812v2 · doi: 10.48550/arxiv.1504.01812 · pith_short_12: NRTFRZR4WCU6 · pith_short_16: NRTFRZR4WCU6XOPR · pith_short_8: NRTFRZR4

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/NRTFRZR4WCU6XOPRHATVLB7RNH \
  | 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: 6c6658e63cb0a9ebb9f138275587f169f586df9d3498038b1b6281b6d43e84f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1c98d97b1ad037293efd3ade7e8ea01ae0e427c635fb9a6ddd4b332e81e6126",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-04-08T03:03:12Z",
    "title_canon_sha256": "c4d068a3cb047994dd8777ebabc00f56c5d2f8a6702588771518f46db4c1a024"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01812",
    "kind": "arxiv",
    "version": 2
  }
}