Pith Number

pith:GUUAKDTK

pith:2013:GUUAKDTKTBDZRMXV2OKFM3N5U5

not attested not anchored not stored refs pending

The X-ray spectral properties of very-faint persistent neutron star X-ray binaries

M. Armas Padilla, N. Degenaar, R. Wijnands

arxiv:1303.6640 v2 · 2013-03-26 · 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{GUUAKDTKTBDZRMXV2OKFM3N5U5}

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	2026-05-18T01:50:52.317627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3528050e6a984798b2f5d394566dbda76f54d48dbd175023e786890e1e7e210a

Aliases

arxiv: 1303.6640 · arxiv_version: 1303.6640v2 · doi: 10.48550/arxiv.1303.6640 · pith_short_12: GUUAKDTKTBDZ · pith_short_16: GUUAKDTKTBDZRMXV · pith_short_8: GUUAKDTK

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/GUUAKDTKTBDZRMXV2OKFM3N5U5 \
  | 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: 3528050e6a984798b2f5d394566dbda76f54d48dbd175023e786890e1e7e210a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbea80b018d5576fbe61717fb0cb91360fded158c3d5f798a1779f646d49dfa1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-03-26T20:00:09Z",
    "title_canon_sha256": "86221f8ef8e50258fbb999c25fb918d4e6290ed6e7467fb7e22794ab81ad6cd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.6640",
    "kind": "arxiv",
    "version": 2
  }
}