Pith Number

pith:DSVD3K2U

pith:1995:DSVD3K2U7VR7CYKVEPBYDBDF6V

not attested not anchored not stored refs pending

ROSAT HRI Observations of the Crab Pulsar: An Improved Temperature upper limit for PSR 0531+21

B. Aschenbach (Max-Planck-Institut f\"ur extraterrestrische Physik, Garching, Germany), W. Becker

arxiv:astro-ph/9503012 v1 · 1995-03-02 · 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{DSVD3K2U7VR7CYKVEPBYDBDF6V}

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	2026-05-18T01:07:41.981618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1caa3dab54fd63f1615523c3818465f546b9079240d6e28a3d3d04c64dc95947

Aliases

arxiv: astro-ph/9503012 · arxiv_version: astro-ph/9503012v1 · doi: 10.48550/arxiv.astro-ph/9503012 · pith_short_12: DSVD3K2U7VR7 · pith_short_16: DSVD3K2U7VR7CYKV · pith_short_8: DSVD3K2U

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/DSVD3K2U7VR7CYKVEPBYDBDF6V \
  | 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: 1caa3dab54fd63f1615523c3818465f546b9079240d6e28a3d3d04c64dc95947

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c3abc1438e49dcd84249bde2fb994959903b20978d83d8a562db394618d182e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-03-02T16:53:22Z",
    "title_canon_sha256": "77845bf953277a53f07afe573700c67ea2219a28cb1deb58640a8a13e1d5182a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9503012",
    "kind": "arxiv",
    "version": 1
  }
}