Pith Number

pith:HSQQHWTL

pith:2022:HSQQHWTLWCBGQG7Z5JNUEOY6QY

not attested not anchored not stored refs pending

Classification of convex ancient free boundary mean curvature flows in the ball

Mat Langford, Theodora Bourni

arxiv:2204.06710 v1 · 2022-04-14 · 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{HSQQHWTLWCBGQG7Z5JNUEOY6QY}

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	2026-07-05T04:14:45.149190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ca103da6bb082681bf9ea5b423b1e8613c4ec71835b0cdc3553a11558efcfd8

Aliases

arxiv: 2204.06710 · arxiv_version: 2204.06710v1 · doi: 10.48550/arxiv.2204.06710 · pith_short_12: HSQQHWTLWCBG · pith_short_16: HSQQHWTLWCBGQG7Z · pith_short_8: HSQQHWTL

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/HSQQHWTLWCBGQG7Z5JNUEOY6QY \
  | 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: 3ca103da6bb082681bf9ea5b423b1e8613c4ec71835b0cdc3553a11558efcfd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "585a6d30c6450294030649ea563829044569eb69596cf22b9e2135a80fcdd230",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2022-04-14T02:48:40Z",
    "title_canon_sha256": "b1d8ad92cb3f6bd6ef4763f334d5e782b8ff44b23d6bfc5de2741182c73fb618"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.06710",
    "kind": "arxiv",
    "version": 1
  }
}