Pith Number

pith:DYBO2DLW

pith:2018:DYBO2DLW4I3BO4W7YAAZAMOM5I

not attested not anchored not stored refs pending

A note on the evolution of the Whitney sphere along mean curvature flow

Celso Viana

arxiv:1802.02108 v2 · 2018-02-06 · 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{DYBO2DLW4I3BO4W7YAAZAMOM5I}

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	2026-05-17T23:58:31.043509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e02ed0d76e2361772dfc0019031ccea111e089e298cbccbcaf0d7565e9b9bb5

Aliases

arxiv: 1802.02108 · arxiv_version: 1802.02108v2 · doi: 10.48550/arxiv.1802.02108 · pith_short_12: DYBO2DLW4I3B · pith_short_16: DYBO2DLW4I3BO4W7 · pith_short_8: DYBO2DLW

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/DYBO2DLW4I3BO4W7YAAZAMOM5I \
  | 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: 1e02ed0d76e2361772dfc0019031ccea111e089e298cbccbcaf0d7565e9b9bb5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "383912cf5b2a68220d226538a135855a181200b5867c8146507dee1120a56ba1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-02-06T18:06:08Z",
    "title_canon_sha256": "f777f2bbf569b8a42162f5a435344165a393451303a1dcb123c691aa97753aa0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02108",
    "kind": "arxiv",
    "version": 2
  }
}