Pith Number

pith:W33W25WV

pith:2013:W33W25WVJ4ILUTILAMRKLNXOG6

not attested not anchored not stored refs pending

Are polar rings indeed polar?

(2) Special Astrophysical Observatory RAS), A.V. Moiseev (2) ((1) Ural Federal University, K.I. Smirnova (1), Russia

arxiv:1311.4138 v1 · 2013-11-17 · 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{W33W25WVJ4ILUTILAMRKLNXOG6}

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	2026-05-18T01:46:24.097140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6f76d76d54f10ba4d0b0322a5b6ee37b74382215235232c6a1cebcd387d6214

Aliases

arxiv: 1311.4138 · arxiv_version: 1311.4138v1 · doi: 10.48550/arxiv.1311.4138 · pith_short_12: W33W25WVJ4IL · pith_short_16: W33W25WVJ4ILUTIL · pith_short_8: W33W25WV

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/W33W25WVJ4ILUTILAMRKLNXOG6 \
  | 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: b6f76d76d54f10ba4d0b0322a5b6ee37b74382215235232c6a1cebcd387d6214

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b839c0488453d0485b81e9713241ba42ec5be46f7753045f7adfe8af4caa793e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-11-17T10:01:11Z",
    "title_canon_sha256": "d399cf44d6d58be52033dcaef9a7f7b3d216c12bc73edab2a0d43e93d595769f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4138",
    "kind": "arxiv",
    "version": 1
  }
}