Pith Number

pith:HTNNSDR2

pith:2013:HTNNSDR2ZR4DHGPYWEKIKPVURA

not attested not anchored not stored refs pending

Near-infrared photometry of Galactic planetary nebulae with the VVV Survey

A. Zijlstra, D. Minniti, M. G. Volpe, P.A.M. van Hoof, R. Gamen, W. A. Weidmann

arxiv:1304.3755 v1 · 2013-04-13 · 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{HTNNSDR2ZR4DHGPYWEKIKPVURA}

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	2026-05-18T03:28:04.475590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cdad90e3acc783399f8b114853eb48803e0c349d8868090097f763d32ee8839

Aliases

arxiv: 1304.3755 · arxiv_version: 1304.3755v1 · doi: 10.48550/arxiv.1304.3755 · pith_short_12: HTNNSDR2ZR4D · pith_short_16: HTNNSDR2ZR4DHGPY · pith_short_8: HTNNSDR2

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/HTNNSDR2ZR4DHGPYWEKIKPVURA \
  | 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: 3cdad90e3acc783399f8b114853eb48803e0c349d8868090097f763d32ee8839

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "390ee736df758b80bee8577ae3eb3f8f85ade42c89e492d6a6b2356569489914",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-04-13T00:59:48Z",
    "title_canon_sha256": "e509a9eb95a4bf22923db321cc64f7362b215289640d86e7c52bf574bc654069"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3755",
    "kind": "arxiv",
    "version": 1
  }
}