Pith Number

pith:M6H7PGZC

pith:2013:M6H7PGZCQLXZPVEELBRITBLEIN

not attested not anchored not stored refs pending

Horizon Run 3: Topology as a Standard Ruler

Changbom Park, J. Richard Gott, Juhan Kim, Robert Speare

arxiv:1310.4278 v1 · 2013-10-16 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M6H7PGZCQLXZPVEELBRITBLEIN}

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	2026-05-18T01:46:58.995435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

678ff79b2282ef97d4845862898564436560dce4cc305d153a8ce529f4b2bea7

Aliases

arxiv: 1310.4278 · arxiv_version: 1310.4278v1 · doi: 10.48550/arxiv.1310.4278 · pith_short_12: M6H7PGZCQLXZ · pith_short_16: M6H7PGZCQLXZPVEE · pith_short_8: M6H7PGZC

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/M6H7PGZCQLXZPVEELBRITBLEIN \
  | 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: 678ff79b2282ef97d4845862898564436560dce4cc305d153a8ce529f4b2bea7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eda81f09476608fa4189bab1c7a1ecc0775b83e0adebba8b186a7722269b727e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-10-16T06:40:30Z",
    "title_canon_sha256": "692a57c9a4cd3de146323c64c0e446d520a8c6f6ccf68ca7196caa13e2033807"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.4278",
    "kind": "arxiv",
    "version": 1
  }
}