Pith Number

pith:TXQ2IJNV

pith:2019:TXQ2IJNVXQT6JVVTXUSZXMI6DD

not attested not anchored not stored refs pending

Could the Universe have an Exotic Topology?

Puskar Mondal, Vincent Moncrief

arxiv:1903.00323 v1 · 2019-03-01 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TXQ2IJNVXQT6JVVTXUSZXMI6DD}

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	2026-05-17T23:52:20.083030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9de1a425b5bc27e4d6b3bd259bb11e18ded2e076a5bd8e48e5bf5ece3438ae2c

Aliases

arxiv: 1903.00323 · arxiv_version: 1903.00323v1 · doi: 10.48550/arxiv.1903.00323 · pith_short_12: TXQ2IJNVXQT6 · pith_short_16: TXQ2IJNVXQT6JVVT · pith_short_8: TXQ2IJNV

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/TXQ2IJNVXQT6JVVTXUSZXMI6DD \
  | 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: 9de1a425b5bc27e4d6b3bd259bb11e18ded2e076a5bd8e48e5bf5ece3438ae2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49f6598459af64f3383406074b6385ef13c06feb78b165501ff99ef0486c8894",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-03-01T14:41:15Z",
    "title_canon_sha256": "c620754f793c8c79654ace98a9d2e9e99a69f98357ecdbb2f196b72738a08098"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.00323",
    "kind": "arxiv",
    "version": 1
  }
}