Pith Number

pith:CURT2VYC

pith:2014:CURT2VYCZPKTCZGZDFQYAN6RYG

not attested not anchored not stored refs pending

Tangents and rectifiability of Ahlfors regular Lipschitz differentiability spaces

Guy C. David

arxiv:1405.2461 v1 · 2014-05-10 · math.MG · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CURT2VYCZPKTCZGZDFQYAN6RYG}

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	2026-05-18T02:52:05.454547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15233d5702cbd53164d919618037d1c19d55d9d6b364551d7fafdfbd94f9b2b5

Aliases

arxiv: 1405.2461 · arxiv_version: 1405.2461v1 · doi: 10.48550/arxiv.1405.2461 · pith_short_12: CURT2VYCZPKT · pith_short_16: CURT2VYCZPKTCZGZ · pith_short_8: CURT2VYC

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/CURT2VYCZPKTCZGZDFQYAN6RYG \
  | 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: 15233d5702cbd53164d919618037d1c19d55d9d6b364551d7fafdfbd94f9b2b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28296e2a16e80e4e29f1d3c1868c05341541c9b47fae009dfd825c89d57cb14b",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2014-05-10T18:59:43Z",
    "title_canon_sha256": "3942fe0f0629eed25a1915513308238037d6dac594054352d73e8e1912cfb542"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2461",
    "kind": "arxiv",
    "version": 1
  }
}