Pith Number

pith:NPFGQ4R7

pith:2014:NPFGQ4R7SN7QXMWTCTAPYAXXWC

not attested not anchored not stored refs pending

Polar-ring galaxies: the SDSS view on the symbiotic galaxies

F. Combes, V. Reshetnikov

arxiv:1412.2016 v1 · 2014-12-05 · 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{NPFGQ4R7SN7QXMWTCTAPYAXXWC}

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	2026-05-18T01:41:22.928667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bca68723f937f0bb2d314c0fc02f7b08188471e36c5a04f60d6776e9ee67956

Aliases

arxiv: 1412.2016 · arxiv_version: 1412.2016v1 · doi: 10.48550/arxiv.1412.2016 · pith_short_12: NPFGQ4R7SN7Q · pith_short_16: NPFGQ4R7SN7QXMWT · pith_short_8: NPFGQ4R7

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/NPFGQ4R7SN7QXMWTCTAPYAXXWC \
  | 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: 6bca68723f937f0bb2d314c0fc02f7b08188471e36c5a04f60d6776e9ee67956

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d325c9a28011f6a2b301a63c793bcce621e1940c21bbf088ece4f3924f3423a9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-12-05T14:54:44Z",
    "title_canon_sha256": "d2b4218020b4abbe8fa779af4fa96feef911ceaea9f400ed565876f153032c5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2016",
    "kind": "arxiv",
    "version": 1
  }
}