Pith Number

pith:FR3QZXC3

pith:2018:FR3QZXC36WMWSZMBPLUTYXGIBM

not attested not anchored not stored refs pending

The Open Universe Initiative

A.M.T. Pollock, G. Arrigo, J. Del Rio Vera, M. de Angelis, P. Giommi, S. Di Ciaccio, S. Di Pippo, S. Iacovoni, U. Barres de Almeida

arxiv:1805.08505 v1 · 2018-05-22 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FR3QZXC36WMWSZMBPLUTYXGIBM}

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	2026-05-18T00:15:26.236177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c770cdc5bf5996965817ae93c5cc80b1a670a4f8c2572687a0312a59e32ea8b

Aliases

arxiv: 1805.08505 · arxiv_version: 1805.08505v1 · doi: 10.48550/arxiv.1805.08505 · pith_short_12: FR3QZXC36WMW · pith_short_16: FR3QZXC36WMWSZMB · pith_short_8: FR3QZXC3

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/FR3QZXC36WMWSZMBPLUTYXGIBM \
  | 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: 2c770cdc5bf5996965817ae93c5cc80b1a670a4f8c2572687a0312a59e32ea8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dd51cc0d41e5fb3752cfb473fb105fe21786ee736b514ab7d3eb0b59ed91552",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-05-22T11:17:05Z",
    "title_canon_sha256": "a7afcf8bf49e76db81e3158099ea5836d94aca5c1c52d6a7ec76add7fcf31782"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08505",
    "kind": "arxiv",
    "version": 1
  }
}