Pith Number

pith:EM7N27AU

pith:2011:EM7N27AUGPKEKBQVKR2KB3NU2B

not attested not anchored not stored refs pending

Some properties of galaxy structures

Elena Panko, Monika Biernacka, Paulina Piwowarska, Piotr Flin, Wlodzimierz Godlowski

arxiv:1109.0319 v1 · 2011-09-01 · 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{EM7N27AUGPKEKBQVKR2KB3NU2B}

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	2026-05-18T00:21:29.708285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

233edd7c1433d44506155474a0edb4d048fb90cf160d682611e141bd336f3b17

Aliases

arxiv: 1109.0319 · arxiv_version: 1109.0319v1 · doi: 10.48550/arxiv.1109.0319 · pith_short_12: EM7N27AUGPKE · pith_short_16: EM7N27AUGPKEKBQV · pith_short_8: EM7N27AU

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/EM7N27AUGPKEKBQVKR2KB3NU2B \
  | 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: 233edd7c1433d44506155474a0edb4d048fb90cf160d682611e141bd336f3b17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "214c9a8685ade4a93688a852e167714af0253b5cf699be61f5543090bc215fab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-01T22:45:10Z",
    "title_canon_sha256": "5c3461c075fbe89794ddd5a780ff98b5fde00dfd3434aa087b2a195f559dbba7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0319",
    "kind": "arxiv",
    "version": 1
  }
}