Pith Number

pith:KPYOJIGO

pith:2011:KPYOJIGO25432TKP646FFWOESN

not attested not anchored not stored refs pending

Observing Compact Disks Inside Pre-Planetary Nebulae with the Very Large Telescope Interferometer

B. J. Hrivnak, E. Lagadec, H. Van Winckel, O. Chesneau, O. De Marco, S. N. Bright

arxiv:1109.4999 v1 · 2011-09-23 · 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{KPYOJIGO25432TKP646FFWOESN}

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	2026-05-18T02:00:26.224611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53f0e4a0ced779bd4d4ff73c52d9c4934cdc36ff5734eb32ad61f6b26a6a19c2

Aliases

arxiv: 1109.4999 · arxiv_version: 1109.4999v1 · doi: 10.48550/arxiv.1109.4999 · pith_short_12: KPYOJIGO2543 · pith_short_16: KPYOJIGO25432TKP · pith_short_8: KPYOJIGO

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/KPYOJIGO25432TKP646FFWOESN \
  | 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: 53f0e4a0ced779bd4d4ff73c52d9c4934cdc36ff5734eb32ad61f6b26a6a19c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ee68f58cde0dcf0c6d31a11e97b05a884e2966d418cbcc2b5e388bdbd4f20a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-23T04:57:47Z",
    "title_canon_sha256": "74c1655827f5750ebecf32c6ff67bdfba84b90a2854aaa7035778ad856e7931a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4999",
    "kind": "arxiv",
    "version": 1
  }
}