Pith Number

pith:EZD6VASY

pith:2019:EZD6VASYRO344FR4EYPQ3HMO2P

not attested not anchored not stored refs pending

Convex ancient solutions to mean curvature flow

Giuseppe Tinaglia, Mat Langford, Theodora Bourni

arxiv:1907.03932 v1 · 2019-07-09 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EZD6VASYRO344FR4EYPQ3HMO2P}

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	2026-05-17T23:41:06.323880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2647ea82588bb7ce163c261f0d9d8ed3e7a99dcd5cad46bae0e08f6324f6c8ae

Aliases

arxiv: 1907.03932 · arxiv_version: 1907.03932v1 · doi: 10.48550/arxiv.1907.03932 · pith_short_12: EZD6VASYRO34 · pith_short_16: EZD6VASYRO344FR4 · pith_short_8: EZD6VASY

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/EZD6VASYRO344FR4EYPQ3HMO2P \
  | 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: 2647ea82588bb7ce163c261f0d9d8ed3e7a99dcd5cad46bae0e08f6324f6c8ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf20f5257b2ed4cfeb1a7e6736e6eb52dc9265441beeba2cbd78fc86d8e4bfc7",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-07-09T01:26:14Z",
    "title_canon_sha256": "23d8968434063b7aa63235b5316df743321ea8aec95cf6dfefe9f65849276495"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.03932",
    "kind": "arxiv",
    "version": 1
  }
}