Pith Number

pith:AHB763NC

pith:2013:AHB763NCXXNGN7B5AFRLT2J3SZ

not attested not anchored not stored refs pending

A 2 hour periodic variation in the low mass X-ray binary Ser X-1

D. Steeghs, J. Casares, P.A. Charles, R. Cornelisse

arxiv:1304.1664 v1 · 2013-04-05 · 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{AHB763NCXXNGN7B5AFRLT2J3SZ}

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	2026-05-18T01:50:42.554030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01c3ff6da2bdda66fc3d0162b9e93b9650ffa976e40d3184058d509eb2d1c28a

Aliases

arxiv: 1304.1664 · arxiv_version: 1304.1664v1 · doi: 10.48550/arxiv.1304.1664 · pith_short_12: AHB763NCXXNG · pith_short_16: AHB763NCXXNGN7B5 · pith_short_8: AHB763NC

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/AHB763NCXXNGN7B5AFRLT2J3SZ \
  | 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: 01c3ff6da2bdda66fc3d0162b9e93b9650ffa976e40d3184058d509eb2d1c28a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "295939ba9a896e94ca60a6b84dd2fdaea6b14ebdd56380f6d1e0ac0285310a90",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-04-05T10:14:14Z",
    "title_canon_sha256": "7db72a3944731013e631ad6d019326003be0033e4c80574c03744a548d2e6a1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1664",
    "kind": "arxiv",
    "version": 1
  }
}