Pith Number

pith:AXHCMW6Z

pith:2009:AXHCMW6ZBW6DTQ6Y4EVA4KOOGB

not attested not anchored not stored refs pending

4U 1909+07: a well-hidden pearl (Conf. Proc.)

(2) CASS UCSD, (3) CRESST GSFC, F. Fuerst (1), Germany, I. Kreykenbohm (1), J. Wilms (1), K. Pottschmidt (3) ((1) Remeis Observatory & ECAP, L. Barrag\'an (1), R. E. Rothschild (2), S. Suchy (2), UMBC, USA, USA)

arxiv:0912.3702 v2 · 2009-12-18 · astro-ph.HE · 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{AXHCMW6ZBW6DTQ6Y4EVA4KOOGB}

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	2026-05-18T04:38:15.578655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05ce265bd90dbc39c3d8e12a0e29ce304ab90511eb22d666c05fbaca0318af85

Aliases

arxiv: 0912.3702 · arxiv_version: 0912.3702v2 · doi: 10.48550/arxiv.0912.3702 · pith_short_12: AXHCMW6ZBW6D · pith_short_16: AXHCMW6ZBW6DTQ6Y · pith_short_8: AXHCMW6Z

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/AXHCMW6ZBW6DTQ6Y4EVA4KOOGB \
  | 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: 05ce265bd90dbc39c3d8e12a0e29ce304ab90511eb22d666c05fbaca0318af85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4857e5e0da7176b53386f9957b9f69519e9c16da73814d4410403dce0d291f3e",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-12-18T15:20:46Z",
    "title_canon_sha256": "77f8b1f2e2161fa18703de2c76633614fe56bd66b02ced7e816df7dd5f97a2b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3702",
    "kind": "arxiv",
    "version": 2
  }
}