Pith Number

pith:XPUIHLQ3

pith:2011:XPUIHLQ3SIW4ID5C3IXEYNKZ7W

not attested not anchored not stored refs pending

A Petal of the Sunflower: Photometry of the Stellar Tidal Stream in the Halo of Messier 63 (NGC 5055)

David Martinez-Delgado, Gary J. Hill, Ignacio Trujillo, Ray Gralak, R. Jay Gabany, Steven R. Majewski, Taylor S. Chonis

arxiv:1109.0019 v2 · 2011-08-31 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XPUIHLQ3SIW4ID5C3IXEYNKZ7W}

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	2026-05-18T02:00:43.712334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbe883ae1b922dc40fa2da2e4c3559fdbe1882782ea36e647c5307d4aea6e3bc

Aliases

arxiv: 1109.0019 · arxiv_version: 1109.0019v2 · doi: 10.48550/arxiv.1109.0019 · pith_short_12: XPUIHLQ3SIW4 · pith_short_16: XPUIHLQ3SIW4ID5C · pith_short_8: XPUIHLQ3

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/XPUIHLQ3SIW4ID5C3IXEYNKZ7W \
  | 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: bbe883ae1b922dc40fa2da2e4c3559fdbe1882782ea36e647c5307d4aea6e3bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f170665bbd98f0ec34d5f10872fb66a188bd5c867c03028327c922121ad73a26",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-08-31T20:06:41Z",
    "title_canon_sha256": "afd28e4aa3a708d74fccd23fa92f043d5a528fa5799282694293be3bd39ed75a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0019",
    "kind": "arxiv",
    "version": 2
  }
}