Pith Number

pith:MUBHRKMC

pith:2016:MUBHRKMCF57HYDG4OA3E42JM3U

not attested not anchored not stored refs pending

On Approximations of the Curve Shortening Flow and of the Mean Curvature Flow based on the DeTurck trick

Charles M. Elliott, Hans Fritz

arxiv:1602.07143 v2 · 2016-02-23 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MUBHRKMCF57HYDG4OA3E42JM3U}

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	2026-05-18T01:16:09.203846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

650278a9822f7e7c0cdc70364e692cdd2ac364ca5de411bca4b9705c44e6374b

Aliases

arxiv: 1602.07143 · arxiv_version: 1602.07143v2 · doi: 10.48550/arxiv.1602.07143 · pith_short_12: MUBHRKMCF57H · pith_short_16: MUBHRKMCF57HYDG4 · pith_short_8: MUBHRKMC

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/MUBHRKMCF57HYDG4OA3E42JM3U \
  | 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: 650278a9822f7e7c0cdc70364e692cdd2ac364ca5de411bca4b9705c44e6374b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44f15ab22294528e1ccf89f3d851f861607cee5643f0f64ccf01dbed120af2df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-02-23T13:23:59Z",
    "title_canon_sha256": "5f1e01dba9b469abb12ae49bcf943c39e71b05de7c8fed2dec6eb9c516e98a2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.07143",
    "kind": "arxiv",
    "version": 2
  }
}