Pith Number

pith:73GTYYZP

pith:2009:73GTYYZP4QI6XQSTLI5I4UZEZH

not attested not anchored not stored refs pending

Exceptional flaring activity of the anomalous X-ray pulsar 1E 1547.0-5408

A.Neronov, N.Produit, R.Walter, V.Beckmann, V.Savchenko

arxiv:0912.0290 v1 · 2009-12-02 · 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{73GTYYZP4QI6XQSTLI5I4UZEZH}

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	2026-05-18T02:10:34.842623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fecd3c632fe411ebc2535a3a8e5324c9c72f4e5dec63a5683c087f521b5fccff

Aliases

arxiv: 0912.0290 · arxiv_version: 0912.0290v1 · doi: 10.48550/arxiv.0912.0290 · pith_short_12: 73GTYYZP4QI6 · pith_short_16: 73GTYYZP4QI6XQST · pith_short_8: 73GTYYZP

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/73GTYYZP4QI6XQSTLI5I4UZEZH \
  | 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: fecd3c632fe411ebc2535a3a8e5324c9c72f4e5dec63a5683c087f521b5fccff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2688db8dc9a37a511618b95af8d05048ee42512ec77b32d03db334d8869a87a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-12-02T12:58:11Z",
    "title_canon_sha256": "7f68e4218321fb2334d34067a2a0bdb5bb0fd6a6139bb73958eb4f152a84b0be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0290",
    "kind": "arxiv",
    "version": 1
  }
}