Pith Number

pith:LEWGG3EU

pith:2011:LEWGG3EUCFRXFZFUXQRRQX2FYN

not attested not anchored not stored refs pending

A 30 AU radius CO gas hole in the disk around the Herbig Ae star Oph IRS 48

Ewine F. van Dishoeck, Gregory J. Herczeg, Joanna M. Brown, Klaus M. Pontoppidan

arxiv:1110.2095 v1 · 2011-10-10 · astro-ph.GA · 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{LEWGG3EUCFRXFZFUXQRRQX2FYN}

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	2026-05-18T02:00:14.189059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

592c636c94116372e4b4bc23185f45c348a9ced346ebe26e6d628a6395fe2c55

Aliases

arxiv: 1110.2095 · arxiv_version: 1110.2095v1 · doi: 10.48550/arxiv.1110.2095 · pith_short_12: LEWGG3EUCFRX · pith_short_16: LEWGG3EUCFRXFZFU · pith_short_8: LEWGG3EU

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/LEWGG3EUCFRXFZFUXQRRQX2FYN \
  | 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: 592c636c94116372e4b4bc23185f45c348a9ced346ebe26e6d628a6395fe2c55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a4c5c4e374331baaab5fceca87151f6f557aa23412c79d61f93a7778c116327",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-10-10T16:20:21Z",
    "title_canon_sha256": "ec745db4de7e87d20c561f6e841f2054f7efc4218e88b4d8b7cfb2f5c4064869"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2095",
    "kind": "arxiv",
    "version": 1
  }
}