Pith Number

pith:QLM7S7OB

pith:2011:QLM7S7OBREY34CWGLCB3BUORGD

not attested not anchored not stored refs pending

Two-component outer ring and the Galactic spiral structure

A. M. Mel'nik, P. Rautiainen

arxiv:1108.3741 v1 · 2011-08-18 · 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{QLM7S7OBREY34CWGLCB3BUORGD}

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	2026-05-18T04:06:07.701889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82d9f97dc18931be0ac65883b0d1d130e40302343dfe0c598b848aaa88d6b5e4

Aliases

arxiv: 1108.3741 · arxiv_version: 1108.3741v1 · doi: 10.48550/arxiv.1108.3741 · pith_short_12: QLM7S7OBREY3 · pith_short_16: QLM7S7OBREY34CWG · pith_short_8: QLM7S7OB

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/QLM7S7OBREY34CWGLCB3BUORGD \
  | 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: 82d9f97dc18931be0ac65883b0d1d130e40302343dfe0c598b848aaa88d6b5e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b092d355a6fc73786bf60d78c2c3cb6043834d9b9ac45a7fad21e0598b413658",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-08-18T12:42:20Z",
    "title_canon_sha256": "6f8aa768a79320ace337e05adeea2bcdc51a0432e78301c1fe54e9e0934566c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3741",
    "kind": "arxiv",
    "version": 1
  }
}