Pith Number

pith:PH2PS3IM

pith:2010:PH2PS3IMTJSLDQZ4YEA4KGSMRJ

not attested not anchored not stored refs pending

Working Group Summary - Local Universe

A. Brunthaler, A. Calamida, E. Tolstoy, G. Battaglia, G. Fiorentino, J.M. van der Hulst, R. Beck

arxiv:1009.4103 v1 · 2010-09-21 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PH2PS3IMTJSLDQZ4YEA4KGSMRJ}

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	2026-07-04T23:57:43.354362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79f4f96d0c9a64b1c33cc101c51a4c8a51cf75749a7a2c6d9d9b34c2294c503d

Aliases

arxiv: 1009.4103 · arxiv_version: 1009.4103v1 · doi: 10.48550/arxiv.1009.4103 · pith_short_12: PH2PS3IMTJSL · pith_short_16: PH2PS3IMTJSLDQZ4 · pith_short_8: PH2PS3IM

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/PH2PS3IMTJSLDQZ4YEA4KGSMRJ \
  | 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: 79f4f96d0c9a64b1c33cc101c51a4c8a51cf75749a7a2c6d9d9b34c2294c503d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e6e47e87f22e8a845aa6e5a700c78c66f8f9e162781960b46d8ee3b11813cf1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-09-21T14:09:01Z",
    "title_canon_sha256": "9c208d72a0c49a1e850264559707ac6594228ae8ae741734f1119753eb720192"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4103",
    "kind": "arxiv",
    "version": 1
  }
}