Pith Number

pith:5JSK2I72

pith:2017:5JSK2I72SBT72OSSBHTXVIFHTW

not attested not anchored not stored refs pending

Differential geometry of immersed surfaces in three-dimensional normed spaces

Horst Martini, Ralph Teixeira, Vitor Balestro

arxiv:1707.04226 v2 · 2017-07-13 · 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{5JSK2I72SBT72OSSBHTXVIFHTW}

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	2026-05-18T00:36:08.511124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea64ad23fa9067fd3a5209e77aa0a79d94c3eb4b4d50e0b8ce09050ea918a30a

Aliases

arxiv: 1707.04226 · arxiv_version: 1707.04226v2 · doi: 10.48550/arxiv.1707.04226 · pith_short_12: 5JSK2I72SBT7 · pith_short_16: 5JSK2I72SBT72OSS · pith_short_8: 5JSK2I72

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/5JSK2I72SBT72OSSBHTXVIFHTW \
  | 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: ea64ad23fa9067fd3a5209e77aa0a79d94c3eb4b4d50e0b8ce09050ea918a30a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4aba9d8e64a08c7e4fd25964766c38ec84254c9b51f5f97db307d3dfcf9f1ad2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-07-13T17:06:13Z",
    "title_canon_sha256": "7b43059570c9300b9b75ae0cd17c19ead9f798b56444ecbfc03db3b81d2539bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04226",
    "kind": "arxiv",
    "version": 2
  }
}