Pith Number

pith:HFGAEPFU

pith:2009:HFGAEPFUQLUEEPHSX7XBUC2WHA

not attested not anchored not stored refs pending

The interacting binary V 393 Scorpii: another clue for Double Periodic Variables

Daniela Barria, Gabriela Michalska, Gojko Djurasevic, Ronald Mennickent, Zbigniew Kolaczkowski

arxiv:0911.0691 v2 · 2009-11-03 · 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{HFGAEPFUQLUEEPHSX7XBUC2WHA}

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	2026-05-18T02:11:00.000158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

394c023cb482e8423cf2bfee1a0b563832e1cde82938d564e7e1eb0aebe0a1b4

Aliases

arxiv: 0911.0691 · arxiv_version: 0911.0691v2 · doi: 10.48550/arxiv.0911.0691 · pith_short_12: HFGAEPFUQLUE · pith_short_16: HFGAEPFUQLUEEPHS · pith_short_8: HFGAEPFU

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/HFGAEPFUQLUEEPHSX7XBUC2WHA \
  | 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: 394c023cb482e8423cf2bfee1a0b563832e1cde82938d564e7e1eb0aebe0a1b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4077b6706e4d52ad3fa92952ba89c0fb13b86e8f68786c7c682c9f8ccc72b83",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-03T21:11:46Z",
    "title_canon_sha256": "81b73533e239d5ccc5bec268b0e1a60c0c4ce8020d919f7f21e0f9a98a973686"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0691",
    "kind": "arxiv",
    "version": 2
  }
}