Pith Number

pith:GLFVVM7F

pith:2009:GLFVVM7FUISG7LM5WUEVI3ST6A

not attested not anchored not stored refs pending

The Optical Structure of the Starburst Galaxy M82. II. Nebular Properties of the Disk and Inner-Wind

(2) University of Wisconsin-Madison, 3), (3) STScI, (4) Gemini, (5) Cambridge), ESA, G. Trancho (4), I. S. Konstantopoulos (1) ((1) UCL, J. S. Gallagher (2), L. J. Smith (1, M. S. Westmoquette (1), N. Bastian (5)

arxiv:0907.3162 v1 · 2009-07-17 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GLFVVM7FUISG7LM5WUEVI3ST6A}

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	2026-05-18T02:12:55.994755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32cb5ab3e5a2246fad9db509546e53f0213b101a4166228081b3631bf26fb43f

Aliases

arxiv: 0907.3162 · arxiv_version: 0907.3162v1 · doi: 10.48550/arxiv.0907.3162 · pith_short_12: GLFVVM7FUISG · pith_short_16: GLFVVM7FUISG7LM5 · pith_short_8: GLFVVM7F

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/GLFVVM7FUISG7LM5WUEVI3ST6A \
  | 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: 32cb5ab3e5a2246fad9db509546e53f0213b101a4166228081b3631bf26fb43f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8bc5572fcb470ada67e7c2b26642a659a74d3b6e945af41b4e9d306d37d6966",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-17T21:22:09Z",
    "title_canon_sha256": "e91edfcdfa27bb2ea5acbd3be29a748f79003fa6a1d94fd0707cff5971649196"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3162",
    "kind": "arxiv",
    "version": 1
  }
}