Pith Number

pith:HEEOOKWR

pith:2017:HEEOOKWRXOZGEN44OLEVBDYNVV

not attested not anchored not stored refs pending

Note on the backwards uniqueness of mean curvature flow

Zhuhong Zhang

arxiv:1709.00798 v1 · 2017-09-04 · 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{HEEOOKWRXOZGEN44OLEVBDYNVV}

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	2026-05-18T00:15:42.092409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3908e72ad1bbb262379c72c9508f0dad79b62b7b16ce31ebc322da0e8e2df72d

Aliases

arxiv: 1709.00798 · arxiv_version: 1709.00798v1 · doi: 10.48550/arxiv.1709.00798 · pith_short_12: HEEOOKWRXOZG · pith_short_16: HEEOOKWRXOZGEN44 · pith_short_8: HEEOOKWR

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/HEEOOKWRXOZGEN44OLEVBDYNVV \
  | 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: 3908e72ad1bbb262379c72c9508f0dad79b62b7b16ce31ebc322da0e8e2df72d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd50949430f115963fefb85628eb10fe9c632e400d8be9e58483bd97643a9683",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-09-04T03:18:27Z",
    "title_canon_sha256": "bc50a63484f2f2fa065a583e621053324d78a95c219f307a41e748f467658804"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.00798",
    "kind": "arxiv",
    "version": 1
  }
}