Pith Number

pith:C5SUIW3B

pith:2009:C5SUIW3B3RRHU6P3MYLNCSXZJ6

not attested not anchored not stored refs pending

The environment of nearby Blue Compact Dwarf Galaxies

Angel R. Lopez-Sanchez, Attila Popping, Barbel Koribalski, Cesar Esteban, Janine van Eymeren, John Hibbard

arxiv:0909.5500 v1 · 2009-09-30 · 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{C5SUIW3B3RRHU6P3MYLNCSXZJ6}

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	2026-07-04T15:53:18.822156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1765445b61dc627a79fb6616d14af94fbc31a8934b082b09b46e7c0902d52cda

Aliases

arxiv: 0909.5500 · arxiv_version: 0909.5500v1 · doi: 10.48550/arxiv.0909.5500 · pith_short_12: C5SUIW3B3RRH · pith_short_16: C5SUIW3B3RRHU6P3 · pith_short_8: C5SUIW3B

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/C5SUIW3B3RRHU6P3MYLNCSXZJ6 \
  | 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: 1765445b61dc627a79fb6616d14af94fbc31a8934b082b09b46e7c0902d52cda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93b53cce63d1bfa355e7def61c7cacd5dcf973c96a1e32aca0f3d9869e1fe8eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-30T03:59:13Z",
    "title_canon_sha256": "83a784e1baeae339cbaa9b897b32d6a410c71ca7547a6492fc7c2210853e4b50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5500",
    "kind": "arxiv",
    "version": 1
  }
}