Pith Number

pith:VL77Z7DB

pith:2013:VL77Z7DBGWTFPX5G5GHHCY7RVA

not attested not anchored not stored refs pending

A Pilot for a VLA HI Deep Field

Attila Popping, David Schiminovich, D.J. Pisano, Emmanuel Momjian, Eric M. Wilcots, J.H. van Gorkom, Kathryn Kreckel, Kelley M. Hess, Laura Chomiuk, Matthew A. Bershady, M.A.W. Verheijen, Nick Scoville, Patricia A. Henning, Tom Oosterloo, Ximena Fern\'andez

arxiv:1303.2659 v2 · 2013-03-11 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VL77Z7DBGWTFPX5G5GHHCY7RVA}

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	2026-05-18T01:59:39.091605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aafffcfc6135a657dfa6e98e7163f1a82ca8978452ad16c68add77ccdc414c7a

Aliases

arxiv: 1303.2659 · arxiv_version: 1303.2659v2 · doi: 10.48550/arxiv.1303.2659 · pith_short_12: VL77Z7DBGWTF · pith_short_16: VL77Z7DBGWTFPX5G · pith_short_8: VL77Z7DB

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/VL77Z7DBGWTFPX5G5GHHCY7RVA \
  | 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: aafffcfc6135a657dfa6e98e7163f1a82ca8978452ad16c68add77ccdc414c7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "415aa1b5eb8546a1fb7dd935b68f154808bfc54787e7a024e894eb3696cf8b06",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-03-11T20:00:02Z",
    "title_canon_sha256": "79aa38337b453852d0ee795bde0fca5eae3f452308e355874da353a2013c1b8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2659",
    "kind": "arxiv",
    "version": 2
  }
}