Pith Number

pith:NK43NKAM

pith:2011:NK43NKAM2MH6CLG2NNDJ34LMV6

not attested not anchored not stored refs pending

Observing the Multiverse with Cosmic Wakes

Kris Sigurdson (UBC), Matthew Kleban (NYU), Thomas S. Levi (UBC)

arxiv:1109.3473 v1 · 2011-09-15 · astro-ph.CO · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NK43NKAM2MH6CLG2NNDJ34LMV6}

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	2026-05-18T03:05:19.079654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ab9b6a80cd30fe12cda6b469df16cafa0213a9b4cf4ffed72e30a9ee6249209

Aliases

arxiv: 1109.3473 · arxiv_version: 1109.3473v1 · doi: 10.48550/arxiv.1109.3473 · pith_short_12: NK43NKAM2MH6 · pith_short_16: NK43NKAM2MH6CLG2 · pith_short_8: NK43NKAM

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/NK43NKAM2MH6CLG2NNDJ34LMV6 \
  | 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: 6ab9b6a80cd30fe12cda6b469df16cafa0213a9b4cf4ffed72e30a9ee6249209

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "895f8f948d09aeaaf27cadc7f63bebb8a71fc0bfad159e61915db577e3173ce5",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-15T20:10:06Z",
    "title_canon_sha256": "9eb15f8a0bd78299a4b2bb3ca278dd6abc0baabd1be62df60be9f82eb49ac835"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3473",
    "kind": "arxiv",
    "version": 1
  }
}