Pith Number

pith:DS7V2UOH

pith:2019:DS7V2UOH7KORP54EJXA3T7YYPX

not attested not anchored not stored refs pending

Weighted estimates for diffeomorphic extensions of homeomorphisms

Haiqing Xu

arxiv:1905.09330 v1 · 2019-05-22 · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DS7V2UOH7KORP54EJXA3T7YYPX}

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	2026-05-17T23:45:19.592391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cbf5d51c7fa9d17f7844dc1b9ff187dcf99a927984c3af14d89db398ede6c1f

Aliases

arxiv: 1905.09330 · arxiv_version: 1905.09330v1 · doi: 10.48550/arxiv.1905.09330 · pith_short_12: DS7V2UOH7KOR · pith_short_16: DS7V2UOH7KORP54E · pith_short_8: DS7V2UOH

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/DS7V2UOH7KORP54EJXA3T7YYPX \
  | 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: 1cbf5d51c7fa9d17f7844dc1b9ff187dcf99a927984c3af14d89db398ede6c1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1cdf71f353e6bbbea39d2f29fba00d2fa94af190bee2437bb7036446dab84958",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2019-05-22T19:04:29Z",
    "title_canon_sha256": "d3d9d2184f97284424efd5b01635407e37caa91d43055de43bc67715e1adaeb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.09330",
    "kind": "arxiv",
    "version": 1
  }
}