Pith Number

pith:VP6L3FAQ

pith:2013:VP6L3FAQKVRSGWOJDDGASK7RNW

not attested not anchored not stored refs pending

A Survey of Astronomical Research: An Astronomy for Development Baseline

(2) EU Universe Awareness, (3) Departamento de Fisica, A. Cardenas-Avendano (3) ((1) Astrophysics, Cosmology, Department of Astronomy, Gravity Centre, Leiden Observatory, P. Russo (2), Universidad Nacional de Colombia), University of Cape Town, V. A. R. M. Ribeiro (1)

arxiv:1304.0657 v2 · 2013-04-02 · astro-ph.IM · physics.soc-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{VP6L3FAQKVRSGWOJDDGASK7RNW}

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	2026-05-18T03:08:15.922747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abfcbd941055632359c918cc092bf16d9f96af088d86068320f2a6aca8442b94

Aliases

arxiv: 1304.0657 · arxiv_version: 1304.0657v2 · doi: 10.48550/arxiv.1304.0657 · pith_short_12: VP6L3FAQKVRS · pith_short_16: VP6L3FAQKVRSGWOJ · pith_short_8: VP6L3FAQ

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/VP6L3FAQKVRSGWOJDDGASK7RNW \
  | 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: abfcbd941055632359c918cc092bf16d9f96af088d86068320f2a6aca8442b94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62592a493b440cb012fc50ee35751e2600818767790830a2a8e87cb3ec8223c4",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-04-02T14:57:31Z",
    "title_canon_sha256": "ae44f81a5319c5c2bb617c85ee442353ead3f79c4ba14fd7576b3fc29ac0a747"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0657",
    "kind": "arxiv",
    "version": 2
  }
}