Pith Number

pith:J32A2QZ4

pith:2011:J32A2QZ4PHTZZT26YXCIDXOPR2

not attested not anchored not stored refs pending

Measuring the Cosmic Web

Kai Hoffmann, Sebastian E. Nuza, Volker Mueller

arxiv:1109.1436 v1 · 2011-09-07 · 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{J32A2QZ4PHTZZT26YXCIDXOPR2}

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	2026-05-18T00:21:29.699148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ef40d433c79e79ccf5ec5c481ddcf8ebc4eac6cf16b453b8794594e64cc8d4e

Aliases

arxiv: 1109.1436 · arxiv_version: 1109.1436v1 · doi: 10.48550/arxiv.1109.1436 · pith_short_12: J32A2QZ4PHTZ · pith_short_16: J32A2QZ4PHTZZT26 · pith_short_8: J32A2QZ4

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/J32A2QZ4PHTZZT26YXCIDXOPR2 \
  | 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: 4ef40d433c79e79ccf5ec5c481ddcf8ebc4eac6cf16b453b8794594e64cc8d4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4507f8e82b30f9a693f23b964adaae8ed624a8555a3a953e9a30ef32e9c0cd14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-07T12:36:02Z",
    "title_canon_sha256": "b700147bcf1beebaa741f5cbe573bb01e2ea92f0c4dcc57ce0d0c3843c361535"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1436",
    "kind": "arxiv",
    "version": 1
  }
}