Pith Number

pith:PRKXM5HY

pith:2024:PRKXM5HY4ZINLF42J36E7QTUXM

not attested not anchored not stored refs pending

Classification of Convex Ancient Solutions to Free Boundary Curve Shortening Flow in Convex Domains

Nathan Burns, Spencer Catron, Theodora Bourni

arxiv:2404.08824 v1 · 2024-04-12 · 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{PRKXM5HY4ZINLF42J36E7QTUXM}

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	2026-07-05T08:07:40.776864Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c557674f8e650d5979a4efc4fc274bb01ff23f1dab6787b7176c704a8b77f24

Aliases

arxiv: 2404.08824 · arxiv_version: 2404.08824v1 · doi: 10.48550/arxiv.2404.08824 · pith_short_12: PRKXM5HY4ZIN · pith_short_16: PRKXM5HY4ZINLF42 · pith_short_8: PRKXM5HY

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/PRKXM5HY4ZINLF42J36E7QTUXM \
  | 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: 7c557674f8e650d5979a4efc4fc274bb01ff23f1dab6787b7176c704a8b77f24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3a3e1328fd212d78ed777c2e590233d659238252f812b22fd426d6bfeb5b79c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2024-04-12T21:40:33Z",
    "title_canon_sha256": "5a39b76f51a27116b82a440c6ee21ac799bf0f9b45ac5c3bd597b62bb697e320"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.08824",
    "kind": "arxiv",
    "version": 1
  }
}