Pith Number

pith:DH4QY2MI

pith:2007:DH4QY2MI5E7FZB3AFZSOT5XE7H

not attested not anchored not stored refs pending

The Post-Burst Awakening of the Anomalous X-ray Pulsar in Westerlund 1

G.L. Israel, J. Cummings, L. Stella, M. P. Muno, R. Perna, S. Campana, S. Dall'Osso

arxiv:astro-ph/0703684 v1 · 2007-03-27 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DH4QY2MI5E7FZB3AFZSOT5XE7H}

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	2026-05-18T04:29:05.389791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19f90c6988e93e5c87602e64e9f6e4f9d5dac77471f986b38e0d29c3c29579f8

Aliases

arxiv: astro-ph/0703684 · arxiv_version: astro-ph/0703684v1 · doi: 10.48550/arxiv.astro-ph/0703684 · pith_short_12: DH4QY2MI5E7F · pith_short_16: DH4QY2MI5E7FZB3A · pith_short_8: DH4QY2MI

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/DH4QY2MI5E7FZB3AFZSOT5XE7H \
  | 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: 19f90c6988e93e5c87602e64e9f6e4f9d5dac77471f986b38e0d29c3c29579f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e95517b310435e7ee4e05a4e468e3867ed8126cc3a519f69345e4138c1cd538e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-03-27T13:51:32Z",
    "title_canon_sha256": "3e65a58375c08f4df2a1c9102d8f0a4148e961512b90e77d989df83ab71e072e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703684",
    "kind": "arxiv",
    "version": 1
  }
}