Pith Number

pith:73YBCHGR

pith:2010:73YBCHGRINOBUWUILVG7ULODBM

not attested not anchored not stored refs pending

Kyoto Conference Dinner Speech: Follow-up in the age of surveys

Paul J. Groot (Radboud University Nijmegen)

arxiv:1009.1777 v1 · 2010-09-09 · astro-ph.IM · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{73YBCHGRINOBUWUILVG7ULODBM}

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	2026-05-18T04:41:06.295110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fef0111cd1435c1a5a885d4dfa2dc30b15346d91d25023820be098641faa17f9

Aliases

arxiv: 1009.1777 · arxiv_version: 1009.1777v1 · doi: 10.48550/arxiv.1009.1777 · pith_short_12: 73YBCHGRINOB · pith_short_16: 73YBCHGRINOBUWUI · pith_short_8: 73YBCHGR

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/73YBCHGRINOBUWUILVG7ULODBM \
  | 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: fef0111cd1435c1a5a885d4dfa2dc30b15346d91d25023820be098641faa17f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38e78672b1f533de9fef0895840decd7639d03120c7e2c3b581b20a0fe1b069c",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-09-09T13:47:29Z",
    "title_canon_sha256": "797e3d5c79f46269624b527a9725b80f4a7102f0e468ea51cb921f320a9a3d02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1777",
    "kind": "arxiv",
    "version": 1
  }
}