Pith Number

pith:GEOYFVOI

pith:2009:GEOYFVOIQYQ3W7GUFMRTNUY5NP

not attested not anchored not stored refs pending

The young active star SAO 51891 (V383 Lac)

(2) INAF - Capodimonte Astronomical Observatory, (3) Ege University, (4) Strasbourg Astronomical Observatory, (5) Steward Observatory, 6, (6) INAF - Arcetri Astrophysical Observatory, 7), (7) ESO - European Southern Observatory), Alexis Klutsch (4), Antonio Frasca (1), Elvira Covino (2), Ettore Marilli (1), Juan M. Alcala' (2), Katia Biazzo (1, Michael R. Meyer (5) ((1) INAF - Catania Astrophysical Observatory, Omur Cakirli (3)

arxiv:0903.3141 v1 · 2009-03-18 · 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{GEOYFVOIQYQ3W7GUFMRTNUY5NP}

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	2026-05-18T02:35:00.338243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

311d82d5c88621bb7cd42b2336d31d6bdbceed6acb3da7e7f21ddb4c1912565e

Aliases

arxiv: 0903.3141 · arxiv_version: 0903.3141v1 · doi: 10.48550/arxiv.0903.3141 · pith_short_12: GEOYFVOIQYQ3 · pith_short_16: GEOYFVOIQYQ3W7GU · pith_short_8: GEOYFVOI

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/GEOYFVOIQYQ3W7GUFMRTNUY5NP \
  | 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: 311d82d5c88621bb7cd42b2336d31d6bdbceed6acb3da7e7f21ddb4c1912565e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc9f7015312d8b16e8317edb853171b5d115b7b67c6e21d2b61519b3b3d8f3c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-03-18T11:54:09Z",
    "title_canon_sha256": "13cc6f79ed1e0b748e4f7a01ec65337369e4c460dc199db24c2af926310c7505"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3141",
    "kind": "arxiv",
    "version": 1
  }
}