Pith Number

pith:PNUCWYJ7

pith:2013:PNUCWYJ7TPTDZ7IFN66OIXCU5U

not attested not anchored not stored refs pending

Analysis of nuclear activity of ten polar ring galaxies

I. Rodrigues, M Fa\'undez-Abans, O. L. Dors, P. Freitas-Lemes

arxiv:1312.5275 v1 · 2013-12-18 · 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{PNUCWYJ7TPTDZ7IFN66OIXCU5U}

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	2026-05-18T02:49:30.634941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b682b613f9be63cfd056fbce45c54ed3c0b598764c148c09460d40ed16f700b

Aliases

arxiv: 1312.5275 · arxiv_version: 1312.5275v1 · doi: 10.48550/arxiv.1312.5275 · pith_short_12: PNUCWYJ7TPTD · pith_short_16: PNUCWYJ7TPTDZ7IF · pith_short_8: PNUCWYJ7

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/PNUCWYJ7TPTDZ7IFN66OIXCU5U \
  | 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: 7b682b613f9be63cfd056fbce45c54ed3c0b598764c148c09460d40ed16f700b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "893ba5934e9649b1d95f7c073aadb3d21f24c981d77bae69c36a49e608809bd9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-12-18T19:22:35Z",
    "title_canon_sha256": "b3ab966a9f977d51c926285ae9adea23ad709164123b629324a6fb1305cd9aa1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5275",
    "kind": "arxiv",
    "version": 1
  }
}