Pith Number

pith:CYNQ7GBC

pith:2019:CYNQ7GBCP3IYCYWPZQGVZGVGFN

not attested not anchored not stored refs pending

Biharmonic wave maps: Local wellposedness in high regularity

Roland Schnaubelt, Sebastian Herr, Tobias Lamm, Tobias Schmid

arxiv:1903.01813 v2 · 2019-03-05 · math.AP · 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{CYNQ7GBCP3IYCYWPZQGVZGVGFN}

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	2026-07-05T00:50:01.454381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

161b0f98227ed18162cfcc0d5c9aa62b63ffac06a49726c90126c03c181c2df1

Aliases

arxiv: 1903.01813 · arxiv_version: 1903.01813v2 · doi: 10.48550/arxiv.1903.01813 · pith_short_12: CYNQ7GBCP3IY · pith_short_16: CYNQ7GBCP3IYCYWP · pith_short_8: CYNQ7GBC

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/CYNQ7GBCP3IYCYWPZQGVZGVGFN \
  | 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: 161b0f98227ed18162cfcc0d5c9aa62b63ffac06a49726c90126c03c181c2df1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51439b63600352dd2212410969d7860f7e519365509f8d03f2abc8e29ed0cc42",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-03-05T13:30:51Z",
    "title_canon_sha256": "efdcd5c582d60460357c88bc4135db5d41292bdc4b21b07e339b08eb15855fea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01813",
    "kind": "arxiv",
    "version": 2
  }
}