Pith Number

pith:7KNNP7TF

pith:2017:7KNNP7TFCX36H7NKUACSZWAY36

not attested not anchored not stored refs pending

Some topics in differential geometry of normed spaces

Horst Martini, Ralph Teixeira, Vitor Balestro

arxiv:1709.01399 v1 · 2017-09-02 · 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{7KNNP7TFCX36H7NKUACSZWAY36}

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	2026-05-18T00:36:00.198868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa9ad7fe6515f7e3fdaaa0052cd818df99dc7663b38e181e2a533a61f3f978f0

Aliases

arxiv: 1709.01399 · arxiv_version: 1709.01399v1 · doi: 10.48550/arxiv.1709.01399 · pith_short_12: 7KNNP7TFCX36 · pith_short_16: 7KNNP7TFCX36H7NK · pith_short_8: 7KNNP7TF

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/7KNNP7TFCX36H7NKUACSZWAY36 \
  | 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: fa9ad7fe6515f7e3fdaaa0052cd818df99dc7663b38e181e2a533a61f3f978f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5ea09913c2f04edccb861299e5e748e0e3d7e6787c14b2859ce6f5631efddf4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-09-02T11:56:56Z",
    "title_canon_sha256": "32d003f84fc67fdda8ed3c5fe6879f638690fcd5fb9004347301db23224f10e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01399",
    "kind": "arxiv",
    "version": 1
  }
}