Pith Number

pith:GG2GIE3C

pith:2009:GG2GIE3CZWCOIX23R6TQC4T67N

not attested not anchored not stored refs pending

First L-band Interferometric Observations of a Young Stellar Object: Probing the Circumstellar Environment of MWC 419

L. A. Hillenbrand, M. M. Colavita, P. L. Wizinowich, R. L. Akeson, R. Millan-Gabet, S. Ragland, S. T. Ridgway, T. Armandroff, W. A. Traub, W. C. Danchi

arxiv:0907.4809 v1 · 2009-07-28 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GG2GIE3CZWCOIX23R6TQC4T67N}

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	2026-05-18T02:12:47.278853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31b4641362cd84e45f5b8fa701727efb71f13a9b3a8b45438f7cc257a98c8820

Aliases

arxiv: 0907.4809 · arxiv_version: 0907.4809v1 · doi: 10.48550/arxiv.0907.4809 · pith_short_12: GG2GIE3CZWCO · pith_short_16: GG2GIE3CZWCOIX23 · pith_short_8: GG2GIE3C

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/GG2GIE3CZWCOIX23R6TQC4T67N \
  | 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: 31b4641362cd84e45f5b8fa701727efb71f13a9b3a8b45438f7cc257a98c8820

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d2dccb10c22067bb3be19cdcb464ba04c32bb82cfba5dc981537ec27e9ed2f4",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-07-28T00:44:07Z",
    "title_canon_sha256": "8bcc523ca7c2c0634c7b268069e77172172880d61625fc0dc7d9fdaa7b211967"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4809",
    "kind": "arxiv",
    "version": 1
  }
}