Pith Number

pith:NYUNHIO7

pith:2011:NYUNHIO72HJB2UV4HHR3QHDNL2

not attested not anchored not stored refs pending

First Keck Nulling Observations of a Young Stellar Object: Probing the Circumstellar Environment of the Herbig Ae star MWC 325

K. Ohnaka, L. Hillenbrand, M. Hrynevych, M. M. Colavita, R. L. Akeson, R. Millan-Gabet, S. Ragland, S. T. Ridgway, W. A. Traub, W. C. Danchi, W. Cotton

arxiv:1111.1813 v2 · 2011-11-08 · 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{NYUNHIO72HJB2UV4HHR3QHDNL2}

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	2026-05-18T01:59:43.917521Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e28d3a1dfd1d21d52bc39e3b81c6d5ebe6e65787f36a6af28197604b61cc206

Aliases

arxiv: 1111.1813 · arxiv_version: 1111.1813v2 · doi: 10.48550/arxiv.1111.1813 · pith_short_12: NYUNHIO72HJB · pith_short_16: NYUNHIO72HJB2UV4 · pith_short_8: NYUNHIO7

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/NYUNHIO72HJB2UV4HHR3QHDNL2 \
  | 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: 6e28d3a1dfd1d21d52bc39e3b81c6d5ebe6e65787f36a6af28197604b61cc206

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00c870ee17f544c8c3bd50cccd96a1eaf2f263647896fd08916360fc7db9609c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-11-08T06:40:48Z",
    "title_canon_sha256": "c2daea16f6cdbec0b57950f3d1564fe3506cb59635cb7d3de5a58ee69809046e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1813",
    "kind": "arxiv",
    "version": 2
  }
}