Pith Number

pith:2CKMDD7F

pith:2011:2CKMDD7FEOOCAVKREBWHPFWA7R

not attested not anchored not stored refs pending

The orientation of disk galaxies around large cosmic voids

Elena Ricciardelli, Ignacio Trujillo, Jes\'us Varela, Juan Betancort-Rijo

arxiv:1109.2056 v1 · 2011-09-09 · 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{2CKMDD7FEOOCAVKREBWHPFWA7R}

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	2026-05-18T02:00:37.089927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d094c18fe5239c205551206c7796c0fc68bdca02bacf15d05b8b8a3bcf12f797

Aliases

arxiv: 1109.2056 · arxiv_version: 1109.2056v1 · doi: 10.48550/arxiv.1109.2056 · pith_short_12: 2CKMDD7FEOOC · pith_short_16: 2CKMDD7FEOOCAVKR · pith_short_8: 2CKMDD7F

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/2CKMDD7FEOOCAVKREBWHPFWA7R \
  | 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: d094c18fe5239c205551206c7796c0fc68bdca02bacf15d05b8b8a3bcf12f797

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cc23bb56e40cc25c5d87568eeaf3be44a3152e9088db85ad70375124611cad7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-09T16:14:42Z",
    "title_canon_sha256": "2acd8e91fbb627175ef1c9058c8fc4b73e8db61ceba3d51941b636b4079b1b12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2056",
    "kind": "arxiv",
    "version": 1
  }
}