Pith Number

pith:HBDFOOU3

pith:2013:HBDFOOU3NL2P7R4C2Z2AZVBAEB

not attested not anchored not stored refs pending

Swift-BAT hard X-ray sky monitoring unveils the orbital period of the HMXB IGR J18219-1347

A. D'A\`i (UNIPA), A. Segreto (INAF IASF Palermo), G. Cusumano, INAF OAR), N. Masetti (INAF IASF Bo), V. D'Elia (ASI-SDC, V. La Parola

arxiv:1305.4178 v2 · 2013-05-17 · 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{HBDFOOU3NL2P7R4C2Z2AZVBAEB}

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	2026-05-18T01:49:49.161222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3846573a9b6af4ffc782d6740cd42020541bf300f92f6f618d405064fc43f0ca

Aliases

arxiv: 1305.4178 · arxiv_version: 1305.4178v2 · doi: 10.48550/arxiv.1305.4178 · pith_short_12: HBDFOOU3NL2P · pith_short_16: HBDFOOU3NL2P7R4C · pith_short_8: HBDFOOU3

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/HBDFOOU3NL2P7R4C2Z2AZVBAEB \
  | 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: 3846573a9b6af4ffc782d6740cd42020541bf300f92f6f618d405064fc43f0ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddd403f4a06309a08fd52da3e6f3f621680aa56cacfd1c2d53a85646dfd4ee4d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-05-17T20:00:01Z",
    "title_canon_sha256": "a8b77de505c46001c760c6d3265b14d3b10835cb2370c1cbe8883d882ab578a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4178",
    "kind": "arxiv",
    "version": 2
  }
}