Pith Number

pith:F6HSXERI

pith:2009:F6HSXERIBGEVB6EAEHG6ITTAXJ

not attested not anchored not stored refs pending

Polar disk galaxy found in wall between voids

E. Platen, J. H. van Gorkom, J. M. van der Hulst, K. Stanonik, M. A. Arag\'on-Calvo, P. J. E. Peebles, R. van de Weygaert

arxiv:0903.2325 v1 · 2009-03-13 · 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{F6HSXERIBGEVB6EAEHG6ITTAXJ}

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	2026-05-18T04:29:15.982475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f8f2b9228098950f88021cde44e60ba5ec76a795bfe8755343fcbb8a2e755f1

Aliases

arxiv: 0903.2325 · arxiv_version: 0903.2325v1 · doi: 10.48550/arxiv.0903.2325 · pith_short_12: F6HSXERIBGEV · pith_short_16: F6HSXERIBGEVB6EA · pith_short_8: F6HSXERI

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/F6HSXERIBGEVB6EAEHG6ITTAXJ \
  | 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: 2f8f2b9228098950f88021cde44e60ba5ec76a795bfe8755343fcbb8a2e755f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4dba1a61351ac13f695800da7a342082c39885704181720fa1b93d83ee3d5e26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-13T07:35:49Z",
    "title_canon_sha256": "0b5fb415db1d36ffdfed5c9ee90d5eca9eb9d533997d97f5731980f6b3aae9c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.2325",
    "kind": "arxiv",
    "version": 1
  }
}