Pith Number

pith:NPQZ6NIS

pith:2011:NPQZ6NISRKYIS5D7E3VBI2N7RO

not attested not anchored not stored refs pending

IVOA Recommendation: Universal Worker Service Pattern Version 1.0

Guy Rixon, Paul Harrison

arxiv:1110.0510 v1 · 2011-10-03 · astro-ph.IM · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NPQZ6NISRKYIS5D7E3VBI2N7RO}

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	2026-05-17T23:45:41.978270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6be19f35128ab089747f26ea1469bf8ba92feb3b5334648548431e8bf4ba10d4

Aliases

arxiv: 1110.0510 · arxiv_version: 1110.0510v1 · doi: 10.48550/arxiv.1110.0510 · pith_short_12: NPQZ6NISRKYI · pith_short_16: NPQZ6NISRKYIS5D7 · pith_short_8: NPQZ6NIS

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/NPQZ6NISRKYIS5D7E3VBI2N7RO \
  | 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: 6be19f35128ab089747f26ea1469bf8ba92feb3b5334648548431e8bf4ba10d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34a0a173001d37ae4f695f14605c902c4c1329a8c027a1e57b7b8753844b637b",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-10-03T21:17:03Z",
    "title_canon_sha256": "88b33f0dc592f0f721ab30e976c18583e587a16ce00a080e3e317bd341e48481"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.0510",
    "kind": "arxiv",
    "version": 1
  }
}