Pith Number

pith:SR7NEGTP

pith:2018:SR7NEGTPGMXS3M6O7UXQMT5IST

not attested not anchored not stored refs pending

A counterexample to Matsumoto's conjecture regarding absolute length vs. relative length in Finsler manifolds

Jeanne N. Clelland

arxiv:1801.07821 v1 · 2018-01-24 · 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{SR7NEGTPGMXS3M6O7UXQMT5IST}

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	2026-05-18T00:03:08.806968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

947ed21a6f332f2db3cefd2f064fa894e27a907899a797294cc01db6e2c9e1af

Aliases

arxiv: 1801.07821 · arxiv_version: 1801.07821v1 · doi: 10.48550/arxiv.1801.07821 · pith_short_12: SR7NEGTPGMXS · pith_short_16: SR7NEGTPGMXS3M6O · pith_short_8: SR7NEGTP

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/SR7NEGTPGMXS3M6O7UXQMT5IST \
  | 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: 947ed21a6f332f2db3cefd2f064fa894e27a907899a797294cc01db6e2c9e1af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1723a7323b541530f1f44894c17903c0fb3b3b488e9549384929c79dc38f8e08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-01-24T00:46:48Z",
    "title_canon_sha256": "dcda07af05f9157de97f1164aec405ac591069eef8363b5894499d4890c3e69a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07821",
    "kind": "arxiv",
    "version": 1
  }
}