Pith Number

pith:XFT64L3F

pith:2012:XFT64L3FBIQF63ONI7XJFQ5PUQ

not attested not anchored not stored refs pending

A second neutron star in M4?

A. Rozanska, I. B. Thompson, J. Kaluzny, M. Rozyczka, W. Krzeminski

arxiv:1203.5971 v1 · 2012-03-27 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XFT64L3FBIQF63ONI7XJFQ5PUQ}

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	2026-05-18T03:58:02.809448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b967ee2f650a205f6dcd47ee92c3afa415fd39905be30d2970112f7273565999

Aliases

arxiv: 1203.5971 · arxiv_version: 1203.5971v1 · doi: 10.48550/arxiv.1203.5971 · pith_short_12: XFT64L3FBIQF · pith_short_16: XFT64L3FBIQF63ON · pith_short_8: XFT64L3F

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/XFT64L3FBIQF63ONI7XJFQ5PUQ \
  | 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: b967ee2f650a205f6dcd47ee92c3afa415fd39905be30d2970112f7273565999

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a7f99308abf300dada8b582a4b143c476b6ed1a1cbbd143e26c5eb865ae1564",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-03-27T13:47:50Z",
    "title_canon_sha256": "7735049b810a0a1e60d7968afff841426072a26b531b975da4f36ad769e6f470"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5971",
    "kind": "arxiv",
    "version": 1
  }
}