Pith Number

pith:LL2XFN3Y

pith:2019:LL2XFN3YC4GZVQBQ4B26MF3WJA

not attested not anchored not stored refs pending

Convex ancient solutions to curve shortening flow

Giuseppe Tinaglia, Mat Langford, Theodora Bourni

arxiv:1903.02022 v1 · 2019-03-05 · 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{LL2XFN3YC4GZVQBQ4B26MF3WJA}

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	2026-05-17T23:51:56.850667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5af572b778170d9ac030e075e61776482368aa544b40da6ecd24fd4076ed455d

Aliases

arxiv: 1903.02022 · arxiv_version: 1903.02022v1 · doi: 10.48550/arxiv.1903.02022 · pith_short_12: LL2XFN3YC4GZ · pith_short_16: LL2XFN3YC4GZVQBQ · pith_short_8: LL2XFN3Y

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/LL2XFN3YC4GZVQBQ4B26MF3WJA \
  | 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: 5af572b778170d9ac030e075e61776482368aa544b40da6ecd24fd4076ed455d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9251b8bec8e23a382bc5d2ee42e502d404d6ba9c3e850600b3c39a070cfc5d65",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-03-05T19:27:04Z",
    "title_canon_sha256": "1bed52a486c346946ce5a59decb3fc9bc491b6c425fab6279b72ce6779159313"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.02022",
    "kind": "arxiv",
    "version": 1
  }
}