Pith Number

pith:A56GJJDF

pith:2013:A56GJJDFBOGMA7OYC6ANV5UTMB

not attested not anchored not stored refs pending

The Herbig Ae SB2 System HD 104237

Charles R. Cowley, Fiorella Castelli, Swetlana Hubrig

arxiv:1303.1850 v1 · 2013-03-07 · 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{A56GJJDFBOGMA7OYC6ANV5UTMB}

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	2026-05-18T01:51:09.899511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

077c64a4650b8cc07dd81780daf693605dfcaf2b6dd62097a76033815d2129c4

Aliases

arxiv: 1303.1850 · arxiv_version: 1303.1850v1 · doi: 10.48550/arxiv.1303.1850 · pith_short_12: A56GJJDFBOGM · pith_short_16: A56GJJDFBOGMA7OY · pith_short_8: A56GJJDF

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/A56GJJDFBOGMA7OYC6ANV5UTMB \
  | 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: 077c64a4650b8cc07dd81780daf693605dfcaf2b6dd62097a76033815d2129c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01c42e608d3aa1690b9a5bf3a04152b091ac2e668dd11c5faf42115bc35827a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-03-07T23:30:12Z",
    "title_canon_sha256": "e30da78279559e288cf9af1bfc14c18086d2dd314906118487c9dc0b06db9c8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1850",
    "kind": "arxiv",
    "version": 1
  }
}