Pith Number

pith:PBVD5WSP

pith:2013:PBVD5WSPYOGOPG5QYNRKXE4LLR

not attested not anchored not stored refs pending

Ancient solutions of the mean curvature flow

Or Hershkovits, Robert Haslhofer

arxiv:1308.4095 v1 · 2013-08-19 · 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{PBVD5WSPYOGOPG5QYNRKXE4LLR}

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	2026-05-18T03:15:34.861819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

786a3eda4fc38ce79bb0c362ab938b5c5b47ef57cfbee2ddab84b854aea05e7b

Aliases

arxiv: 1308.4095 · arxiv_version: 1308.4095v1 · doi: 10.48550/arxiv.1308.4095 · pith_short_12: PBVD5WSPYOGO · pith_short_16: PBVD5WSPYOGOPG5Q · pith_short_8: PBVD5WSP

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/PBVD5WSPYOGOPG5QYNRKXE4LLR \
  | 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: 786a3eda4fc38ce79bb0c362ab938b5c5b47ef57cfbee2ddab84b854aea05e7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7caf43db1add7d7a57d5ec38b1b2573086f5425e2ca185cf603de7a6dc1b432a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-08-19T18:46:49Z",
    "title_canon_sha256": "c849a6756edd2cecf843684d2cbf01a8c68685ad7c5e5085d511276c42616abb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4095",
    "kind": "arxiv",
    "version": 1
  }
}