Pith Number

pith:FFQLML7X

pith:2019:FFQLML7XCQQBCDEH66WZB5MTGC

not attested not anchored not stored refs pending

Long X-ray flares from the central source in RCW 103

A. Borghese, A. De Luca, A. Tiengo, F. Coti Zelati, G. L. Israel, N. Rea, P. Esposito, R. P. Mignani, R. Turolla, W. Hummel

arxiv:1904.05424 v2 · 2019-04-10 · 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{FFQLML7XCQQBCDEH66WZB5MTGC}

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	2026-05-17T23:43:27.702764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2960b62ff71420110c87f7ad90f5933080106580ec75897f8af57589a5a2b0b3

Aliases

arxiv: 1904.05424 · arxiv_version: 1904.05424v2 · doi: 10.48550/arxiv.1904.05424 · pith_short_12: FFQLML7XCQQB · pith_short_16: FFQLML7XCQQBCDEH · pith_short_8: FFQLML7X

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/FFQLML7XCQQBCDEH66WZB5MTGC \
  | 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: 2960b62ff71420110c87f7ad90f5933080106580ec75897f8af57589a5a2b0b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1921f9ab715dfd5c81acdf05c5f7ba2d48fa8aed86ea9d15d4b0f24df72f912",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-04-10T20:16:21Z",
    "title_canon_sha256": "5d40180dbc01da80ce6d5191b62d3eb417d12a7d80d03d4c4f172896a1ae5dbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05424",
    "kind": "arxiv",
    "version": 2
  }
}