Pith Number

pith:BSJV2GGC

pith:2013:BSJV2GGCOWXPB46HJBHGXVNSGP

not attested not anchored not stored refs pending

Hyperbolic semi-adequate links

David Futer, Efstratia Kalfagianni, Jessica S. Purcell

arxiv:1311.3008 v2 · 2013-11-13 · 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{BSJV2GGCOWXPB46HJBHGXVNSGP}

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	2026-05-18T01:20:59.531432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c935d18c275aef0f3c7484e6bd5b233fcbee048dcedf0322ed98c4362247daa

Aliases

arxiv: 1311.3008 · arxiv_version: 1311.3008v2 · doi: 10.48550/arxiv.1311.3008 · pith_short_12: BSJV2GGCOWXP · pith_short_16: BSJV2GGCOWXPB46H · pith_short_8: BSJV2GGC

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/BSJV2GGCOWXPB46HJBHGXVNSGP \
  | 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: 0c935d18c275aef0f3c7484e6bd5b233fcbee048dcedf0322ed98c4362247daa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0bb7582632c9e0a70e183df5d94aece730b89d3ca8547d2e8f5fedad4d54e0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2013-11-13T03:33:03Z",
    "title_canon_sha256": "e3e2212b5fff058c8b4a221b27bca6084f135d2c3d4390ce3bdfe442e200c0b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.3008",
    "kind": "arxiv",
    "version": 2
  }
}