Pith Number

pith:YM2LPNQX

pith:2009:YM2LPNQXYESIPQXLRG3I5AGP6B

not attested not anchored not stored refs pending

The Case of AB Aurigae's Disk in Polarized Light: Is There Truly a Gap?

Carol A. Grady, Christophe Pinte, Dean C. Hines, Gaspard Duchene, Glenn Schneider, John P. Wisniewski, Marshall D. Perrin

arxiv:0911.1130 v1 · 2009-11-05 · astro-ph.EP · 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{YM2LPNQXYESIPQXLRG3I5AGP6B}

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	2026-05-18T02:34:11.825932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c334b7b617c12487c2eb89b68e80cff06a2ac7dabd76ea9d00abd892ac90b1c8

Aliases

arxiv: 0911.1130 · arxiv_version: 0911.1130v1 · doi: 10.48550/arxiv.0911.1130 · pith_short_12: YM2LPNQXYESI · pith_short_16: YM2LPNQXYESIPQXL · pith_short_8: YM2LPNQX

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/YM2LPNQXYESIPQXLRG3I5AGP6B \
  | 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: c334b7b617c12487c2eb89b68e80cff06a2ac7dabd76ea9d00abd892ac90b1c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96d12af9a374ad4a724c8e231d7ab1840fb61056842632d9b3801661a564f205",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-11-05T21:08:51Z",
    "title_canon_sha256": "78266815015c94eab0ea05dd188741032668f7082266861bd897641aba0a2475"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1130",
    "kind": "arxiv",
    "version": 1
  }
}