Pith Number

pith:XCGRRJSO

pith:2013:XCGRRJSO5JDTL5ESN7EWHDHNZ3

not attested not anchored not stored refs pending

Hyperbolic Geometry and Homotopic Homeomorphisms of Surfaces

John Cantwell, Lawrence Conlon

arxiv:1305.1379 v3 · 2013-05-07 · 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{XCGRRJSO5JDTL5ESN7EWHDHNZ3}

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	2026-05-18T02:56:59.954494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b88d18a64eea4735f4926fc9638cedcecac25aa3880faf218b98dc90434bc085

Aliases

arxiv: 1305.1379 · arxiv_version: 1305.1379v3 · doi: 10.48550/arxiv.1305.1379 · pith_short_12: XCGRRJSO5JDT · pith_short_16: XCGRRJSO5JDTL5ES · pith_short_8: XCGRRJSO

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/XCGRRJSO5JDTL5ESN7EWHDHNZ3 \
  | 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: b88d18a64eea4735f4926fc9638cedcecac25aa3880faf218b98dc90434bc085

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "845a9df1c9949fe56be8ed81e230f0a6cc60e74d1f999bfbfdcf46b3ec34f178",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2013-05-07T01:52:27Z",
    "title_canon_sha256": "6a57ca2ee917c24062b7383d430f8665ebd53117713d01392bad0dc5ea1faff5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1379",
    "kind": "arxiv",
    "version": 3
  }
}