Pith Number

pith:3I33FDM3

pith:2011:3I33FDM3NJWGWDPOFFGHCF263V

not attested not anchored not stored refs pending

The dynamics of stars around spiral arms

Daisuke Kawata, Mark Cropper (MSSL, Robert J. J. Grand, UCL)

arxiv:1112.0019 v2 · 2011-11-30 · 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{3I33FDM3NJWGWDPOFFGHCF263V}

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	2026-05-18T01:59:20.902525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da37b28d9b6a6c6b0dee294c71175edd739a8319b14dec6e2aefd8877395fd1e

Aliases

arxiv: 1112.0019 · arxiv_version: 1112.0019v2 · doi: 10.48550/arxiv.1112.0019 · pith_short_12: 3I33FDM3NJWG · pith_short_16: 3I33FDM3NJWGWDPO · pith_short_8: 3I33FDM3

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/3I33FDM3NJWGWDPOFFGHCF263V \
  | 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: da37b28d9b6a6c6b0dee294c71175edd739a8319b14dec6e2aefd8877395fd1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9d328f1985e1481df4b532d1d8ff602799ce577afc24c87fccf71df3ff54650",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-11-30T21:02:03Z",
    "title_canon_sha256": "a85f0a5918d8a099e06dde5e4550565b0650fc644016823353c6a373c9dd8169"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0019",
    "kind": "arxiv",
    "version": 2
  }
}