Pith Number

pith:3AVGQPLB

pith:2002:3AVGQPLBHTWVTWUUXMHDHMTTE5

not attested not anchored not stored refs pending

Interferometric Observations of Formaldehyde in the Protoplanetary Disk around LkCa15

Chunhua Qi, Ewine F. van Dishoeck, Geoffrey A. Blake, Gerd-Jan van Zadelhoff, Munetake Momose, Wing-Fai Thi, Yuri Aikawa

arxiv:astro-ph/0211440 v3 · 2002-11-20 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3AVGQPLBHTWVTWUUXMHDHMTTE5}

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	2026-05-18T01:40:39.973934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d82a683d613ced59da94bb0e33b2732779a5339eb246a79575a9ee7f98954476

Aliases

arxiv: astro-ph/0211440 · arxiv_version: astro-ph/0211440v3 · doi: 10.48550/arxiv.astro-ph/0211440 · pith_short_12: 3AVGQPLBHTWV · pith_short_16: 3AVGQPLBHTWVTWUU · pith_short_8: 3AVGQPLB

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/3AVGQPLBHTWVTWUUXMHDHMTTE5 \
  | 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: d82a683d613ced59da94bb0e33b2732779a5339eb246a79575a9ee7f98954476

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e0d891982b56244010a377d666b1eb5ebfea0a57767ae3f6c6e9fb592eaa1e8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-11-20T05:30:29Z",
    "title_canon_sha256": "613a0ab4d6a094805c01d6552b8f8c644189212d40625132cdd7cf2ff19effb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0211440",
    "kind": "arxiv",
    "version": 3
  }
}