Pith Number

pith:RMHEVPQM

pith:2011:RMHEVPQM524C2T2X2HD6FJZ6WH

not attested not anchored not stored refs pending

Spiral structure in nearby galaxies I. Sample, data analysis, and overview of results

C. Clarke, R. C. Kennicutt, S. Kendall

arxiv:1101.5764 v1 · 2011-01-30 · 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{RMHEVPQM524C2T2X2HD6FJZ6WH}

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	2026-05-18T02:03:20.418783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b0e4abe0ceeb82d4f57d1c7e2a73eb1d7ac7b18e5a62e51341da3cb9b1b65c0

Aliases

arxiv: 1101.5764 · arxiv_version: 1101.5764v1 · doi: 10.48550/arxiv.1101.5764 · pith_short_12: RMHEVPQM524C · pith_short_16: RMHEVPQM524C2T2X · pith_short_8: RMHEVPQM

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/RMHEVPQM524C2T2X2HD6FJZ6WH \
  | 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: 8b0e4abe0ceeb82d4f57d1c7e2a73eb1d7ac7b18e5a62e51341da3cb9b1b65c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d064687293e479c83ee5094b50029eda8e86cc3539e215fb30af295bbb0e2a32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-01-30T11:42:49Z",
    "title_canon_sha256": "7de9d49f689b0c91410a19876fed3674337a4fe4afaa0776ceecf68b6a9a64da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.5764",
    "kind": "arxiv",
    "version": 1
  }
}