Pith Number

pith:T5EUB62Q

pith:2012:T5EUB62QIO37LFKWB4HFO2FJFB

not attested not anchored not stored refs pending

How Flat is Our Universe Really?

B. A. Bassett, P. M. Okouma, Y. Fantaye

arxiv:1207.3000 v2 · 2012-07-12 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T5EUB62QIO37LFKWB4HFO2FJFB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:31:44.857493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f4940fb5043b7f595560f0e5768a9286044a3167ecabbef277f1aa8a39fd419

Aliases

arxiv: 1207.3000 · arxiv_version: 1207.3000v2 · doi: 10.48550/arxiv.1207.3000 · pith_short_12: T5EUB62QIO37 · pith_short_16: T5EUB62QIO37LFKW · pith_short_8: T5EUB62Q

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/T5EUB62QIO37LFKWB4HFO2FJFB \
  | 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: 9f4940fb5043b7f595560f0e5768a9286044a3167ecabbef277f1aa8a39fd419

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e473361286394fea467bfa714dd4734ab2ea4c326e6d688d7e5646a3769a3cf4",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-07-12T15:31:37Z",
    "title_canon_sha256": "55e03359339b187cb15a29a99e8f646ed8a0b3da4b278a6487efc961386eb0cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3000",
    "kind": "arxiv",
    "version": 2
  }
}