Pith Number

pith:YJZH74AZ

pith:2009:YJZH74AZD5ADA2Q3544DOGE4PQ

not attested not anchored not stored refs pending

Evidence for a Strong End-On Bar in the Ringed Sigma-Drop Galaxy NGC 6503

E. Freeland, L. Chomiuk, R. Keenan, T. Nelson

arxiv:0912.0247 v1 · 2009-12-01 · 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{YJZH74AZD5ADA2Q3544DOGE4PQ}

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	2026-05-18T02:10:35.022816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2727ff0191f40306a1bef3837189c7c37d4f57748fe1974ee7da4daddb34185

Aliases

arxiv: 0912.0247 · arxiv_version: 0912.0247v1 · doi: 10.48550/arxiv.0912.0247 · pith_short_12: YJZH74AZD5AD · pith_short_16: YJZH74AZD5ADA2Q3 · pith_short_8: YJZH74AZ

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/YJZH74AZD5ADA2Q3544DOGE4PQ \
  | 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: c2727ff0191f40306a1bef3837189c7c37d4f57748fe1974ee7da4daddb34185

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d0dc56a69a97a61f792057b231b7808c4526ec51b795ffe963bb047b2ae2a78",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-12-01T20:24:13Z",
    "title_canon_sha256": "5210ee342c0d3f9afecf42cd074d82af9e0f3bfbc2ff1c942751b4bd4bca719b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0247",
    "kind": "arxiv",
    "version": 1
  }
}