Pith Number

pith:NHBJV2TS

pith:2014:NHBJV2TSH74NZIVRETUUCN5NZZ

not attested not anchored not stored refs pending

Margulis spacetimes via the arc complex

Fanny Kassel, Fran\c{c}ois Gu\'eritaud, Jeffrey Danciger

arxiv:1407.5422 v1 · 2014-07-21 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NHBJV2TSH74NZIVRETUUCN5NZZ}

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	2026-05-18T02:47:14.030928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69c29aea723ff8dca2b124e94137adce7d09ea0a6733508d633d6c898e5d25ca

Aliases

arxiv: 1407.5422 · arxiv_version: 1407.5422v1 · doi: 10.48550/arxiv.1407.5422 · pith_short_12: NHBJV2TSH74N · pith_short_16: NHBJV2TSH74NZIVR · pith_short_8: NHBJV2TS

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/NHBJV2TSH74NZIVRETUUCN5NZZ \
  | 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: 69c29aea723ff8dca2b124e94137adce7d09ea0a6733508d633d6c898e5d25ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0023cd6d1f84a4d3eb1cf8063a607d7e976fc417914380b7cbf46f38876f913",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2014-07-21T09:08:04Z",
    "title_canon_sha256": "3b7ed397c702dc070425be0af7dc4ea6fb38536c8c51b75ce0ec7665d2f17850"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.5422",
    "kind": "arxiv",
    "version": 1
  }
}