Pith Number

pith:IQ3TR45B

pith:2009:IQ3TR45BZDO3PZDDMVEVINMVWH

not attested not anchored not stored refs pending

Be/X-ray binary SXP6.85 undergoes large Type II outburst in the Small Magellanic Cloud

A.J. Bird, A. Udalski, F. Haberl, J.L. Galache, L.J. Townsend, M.J. Coe, M.P.E. Schurch, R.H.D. Corbet, V.A. McBride

arxiv:0912.2940 v1 · 2009-12-15 · 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{IQ3TR45BZDO3PZDDMVEVINMVWH}

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	2026-05-18T02:10:23.403923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

443738f3a1c8ddb7e4636549543595b1e144f92ac84c8eb96e356e0c0e744b9f

Aliases

arxiv: 0912.2940 · arxiv_version: 0912.2940v1 · doi: 10.48550/arxiv.0912.2940 · pith_short_12: IQ3TR45BZDO3 · pith_short_16: IQ3TR45BZDO3PZDD · pith_short_8: IQ3TR45B

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/IQ3TR45BZDO3PZDDMVEVINMVWH \
  | 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: 443738f3a1c8ddb7e4636549543595b1e144f92ac84c8eb96e356e0c0e744b9f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69e48a3daa9115ee86ee5ed56b7449f4dcffcd47b2e1a1225e9a7f59c3a0ea67",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-12-15T16:05:39Z",
    "title_canon_sha256": "4c5a9bfe300bd3fe1c51793ed3a244ad319208987f3dc556e741d48227a13118"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2940",
    "kind": "arxiv",
    "version": 1
  }
}