Pith Number

pith:QBV3UX2A

pith:2009:QBV3UX2ABWRGRB3OV2JLWW5YFF

not attested not anchored not stored refs pending

VLTI/MIDI observations of 7 classical Be stars

Anthony Meilland (MPIFR), Carol Jones, Olivier Chesneau (FIZEAU), Philippe Stee (FIZEAU)

arxiv:0908.1239 v1 · 2009-08-09 · 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{QBV3UX2ABWRGRB3OV2JLWW5YFF}

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	2026-05-18T02:12:36.259084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

806bba5f400da268876eae92bb5bb82952cce4319226963985ce390a0b4f5e26

Aliases

arxiv: 0908.1239 · arxiv_version: 0908.1239v1 · doi: 10.48550/arxiv.0908.1239 · pith_short_12: QBV3UX2ABWRG · pith_short_16: QBV3UX2ABWRGRB3O · pith_short_8: QBV3UX2A

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/QBV3UX2ABWRGRB3OV2JLWW5YFF \
  | 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: 806bba5f400da268876eae92bb5bb82952cce4319226963985ce390a0b4f5e26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "510db7a112c0a72252f3a64f8db8a9a71f7f2ae31e7a1ea4d522be5d3e0307d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-08-09T15:15:21Z",
    "title_canon_sha256": "a7b137cb0f795d809c8217f3cde82170ad4f902519a4b94f68a351b3a294efcb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1239",
    "kind": "arxiv",
    "version": 1
  }
}