Pith Number

pith:OGP73WVJ

pith:2008:OGP73WVJM3O453OEKAHD4ZNI6B

not attested not anchored not stored refs pending

The needle in the haystack - Where to look for more isolated cooling neutron stars

B. Posselt, F. Haberl, J. Truemper, P.A. Boldin, R. Neuhaeuser, R. Turolla, S.B. Popov

arxiv:0801.4567 v2 · 2008-01-30 · 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{OGP73WVJM3O453OEKAHD4ZNI6B}

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	2026-05-18T02:35:23.463585Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

719ffddaa966ddceedc4500e3e65a8f0436256f91c0f06727b6e491e19129c62

Aliases

arxiv: 0801.4567 · arxiv_version: 0801.4567v2 · doi: 10.48550/arxiv.0801.4567 · pith_short_12: OGP73WVJM3O4 · pith_short_16: OGP73WVJM3O453OE · pith_short_8: OGP73WVJ

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/OGP73WVJM3O453OEKAHD4ZNI6B \
  | 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: 719ffddaa966ddceedc4500e3e65a8f0436256f91c0f06727b6e491e19129c62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "734d569c027a5ce4c59fa5e875ac11ea53f8490146f1c9d72fd6799da5d57e10",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-30T14:57:34Z",
    "title_canon_sha256": "ce1203347ef6570d015bcfb4aaef2046d2d7cb9943a018468ab5b8e2f4f8fdba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.4567",
    "kind": "arxiv",
    "version": 2
  }
}