Pith Number

pith:7VAQMQ4W

pith:2010:7VAQMQ4W3CKKEROIB3ENA4NNLT

not attested not anchored not stored refs pending

On the X-ray Spectra of Anomalous X-ray Pulsars and Soft Gamma Repeaters

Canada), Kristen Boydstun (McGill University, Montreal, Victoria M. Kaspi

arxiv:1001.3847 v1 · 2010-01-21 · 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{7VAQMQ4W3CKKEROIB3ENA4NNLT}

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	2026-05-18T02:09:31.418784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd41064396d894a245c80ec8d071ad5cf5c12117478e9f968c7c78b6477d1aa0

Aliases

arxiv: 1001.3847 · arxiv_version: 1001.3847v1 · doi: 10.48550/arxiv.1001.3847 · pith_short_12: 7VAQMQ4W3CKK · pith_short_16: 7VAQMQ4W3CKKEROI · pith_short_8: 7VAQMQ4W

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/7VAQMQ4W3CKKEROIB3ENA4NNLT \
  | 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: fd41064396d894a245c80ec8d071ad5cf5c12117478e9f968c7c78b6477d1aa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b285272b3e9b481bbe22cc92c878b84f280c4f52611c1a20846989f1ad96b07d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-01-21T17:02:00Z",
    "title_canon_sha256": "ac6e30e5604fa529f07c90c08a84deff8b6578b7ca42393d10ad1bd03bc59ec8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.3847",
    "kind": "arxiv",
    "version": 1
  }
}