Pith Number

pith:7LTCDOPL

pith:2018:7LTCDOPLQAQSWOOX6Q3UTZSDXA

not attested not anchored not stored refs pending

A note on invariant constant curvature immersions in Minkowski space

Fran\c{c}ois Fillastre, Graham Smith

arxiv:1808.05201 v2 · 2018-08-15 · math.DG · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7LTCDOPLQAQSWOOX6Q3UTZSDXA}

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	2026-05-17T23:43:17.663140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fae621b9eb80212b39d7f43749e643b8131cd50ff86697bbe1237e381ac9e641

Aliases

arxiv: 1808.05201 · arxiv_version: 1808.05201v2 · doi: 10.48550/arxiv.1808.05201 · pith_short_12: 7LTCDOPLQAQS · pith_short_16: 7LTCDOPLQAQSWOOX · pith_short_8: 7LTCDOPL

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/7LTCDOPLQAQSWOOX6Q3UTZSDXA \
  | 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: fae621b9eb80212b39d7f43749e643b8131cd50ff86697bbe1237e381ac9e641

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e02e770a9d392ca5e4a5cca7d7c5a5bf0aac52f29f319a76d412123185e2566",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-08-15T17:46:26Z",
    "title_canon_sha256": "13753da8e44800b2456dfcb22bdc5fa46a01f69252088dfa10c23f468e2d682d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.05201",
    "kind": "arxiv",
    "version": 2
  }
}