Pith Number

pith:6TBBAWCT

pith:2015:6TBBAWCTPV6SQJTPIVJNKBIHOC

not attested not anchored not stored refs pending

Deformation and Extension of Fibrations of Spheres by Great Circles

Haggai Nuchi, Herman Gluck, Patricia Cahn

arxiv:1502.03428 v1 · 2015-02-11 · math.GT · math.AT · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6TBBAWCTPV6SQJTPIVJNKBIHOC}

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	2026-05-18T00:18:56.227782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4c21058537d7d28266f4552d5050770a808ff67c60c194f4c2789ed3ea14395

Aliases

arxiv: 1502.03428 · arxiv_version: 1502.03428v1 · doi: 10.48550/arxiv.1502.03428 · pith_short_12: 6TBBAWCTPV6S · pith_short_16: 6TBBAWCTPV6SQJTP · pith_short_8: 6TBBAWCT

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/6TBBAWCTPV6SQJTPIVJNKBIHOC \
  | 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: f4c21058537d7d28266f4552d5050770a808ff67c60c194f4c2789ed3ea14395

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12bdc666e4182515137735eda59fdeada234fa490bbbe7b234b7991c25ae736e",
    "cross_cats_sorted": [
      "math.AT",
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-02-11T20:26:43Z",
    "title_canon_sha256": "5f32690b2688197c445cf6a211e0bafb4bdd977217e9b80518c657f785b7a104"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03428",
    "kind": "arxiv",
    "version": 1
  }
}