Pith Number

pith:EGFTH27R

pith:2019:EGFTH27RYHP3TUVIZVPQCDJBRG

not attested not anchored not stored refs pending

Local existence and uniqueness of Skew Mean Curvature Flow

Chong Song

arxiv:1904.03822 v1 · 2019-04-08 · 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{EGFTH27RYHP3TUVIZVPQCDJBRG}

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	2026-05-17T23:49:08.035802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

218b33ebf1c1dfb9d2a8cd5f010d2189b659ee4d9ca98ef8b9b8ca1680f3546b

Aliases

arxiv: 1904.03822 · arxiv_version: 1904.03822v1 · doi: 10.48550/arxiv.1904.03822 · pith_short_12: EGFTH27RYHP3 · pith_short_16: EGFTH27RYHP3TUVI · pith_short_8: EGFTH27R

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/EGFTH27RYHP3TUVIZVPQCDJBRG \
  | 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: 218b33ebf1c1dfb9d2a8cd5f010d2189b659ee4d9ca98ef8b9b8ca1680f3546b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e89612f9e19b1db8058889f5012326299bced42d726db0559c4846e0e2689e30",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-04-08T03:46:32Z",
    "title_canon_sha256": "2371116fdef9eb3fb7e2e56a8b7569284f68189f6d6da350f8384f77b84c426a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03822",
    "kind": "arxiv",
    "version": 1
  }
}