Pith Number

pith:FIE2IF4V

pith:2009:FIE2IF4VZQ65I4ERBDUDJBT3XY

not attested not anchored not stored refs pending

The origin of the supersoft X-ray--optical/UV flux anticorrelation in the symbiotic binary AG Draconis

A. Skopal, M. Sekeras, R.F. Viotti, R. Gonzalez-Riestra

arxiv:0908.1624 v1 · 2009-08-12 · 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{FIE2IF4VZQ65I4ERBDUDJBT3XY}

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	2026-05-18T02:12:35.235160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a09a41795cc3dd4709108e834867bbe35d311d2970bd7e78a59264947953e72

Aliases

arxiv: 0908.1624 · arxiv_version: 0908.1624v1 · doi: 10.48550/arxiv.0908.1624 · pith_short_12: FIE2IF4VZQ65 · pith_short_16: FIE2IF4VZQ65I4ER · pith_short_8: FIE2IF4V

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/FIE2IF4VZQ65I4ERBDUDJBT3XY \
  | 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: 2a09a41795cc3dd4709108e834867bbe35d311d2970bd7e78a59264947953e72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5c34bcf0853a9d1c5428194b3bd48915e22a4ea3d88dd938d3b657c44dbb438",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-08-12T06:52:28Z",
    "title_canon_sha256": "5c472e7c06b3c63896a178ea2bf336e9a9b6a158461b0262710734ba78a957ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1624",
    "kind": "arxiv",
    "version": 1
  }
}