Pith Number

pith:S6Q6G4QL

pith:2019:S6Q6G4QLGLB7R4ZCLVLQL4GURG

not attested not anchored not stored refs pending

Geometric tangential analysis and sharp regularity for degenerate pdes

Eduardo V. Teixeira, Jos\'e Miguel Urbano

arxiv:1901.10941 v1 · 2019-01-30 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S6Q6G4QLGLB7R4ZCLVLQL4GURG}

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	2026-05-17T23:55:05.698137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97a1e3720b32c3f8f3225d5705f0d489befce7d0251e8b6f2c8113cabaf28d30

Aliases

arxiv: 1901.10941 · arxiv_version: 1901.10941v1 · doi: 10.48550/arxiv.1901.10941 · pith_short_12: S6Q6G4QLGLB7 · pith_short_16: S6Q6G4QLGLB7R4ZC · pith_short_8: S6Q6G4QL

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/S6Q6G4QLGLB7R4ZCLVLQL4GURG \
  | 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: 97a1e3720b32c3f8f3225d5705f0d489befce7d0251e8b6f2c8113cabaf28d30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eeb4b0c9fa108ff0c5a4821bc8151e6bd65521736982685ae111ef927f7f49f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-01-30T16:40:26Z",
    "title_canon_sha256": "08bf8805da9f86d7c8ace277f5546511fc004ccfe51f92716c84a46686f30e18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.10941",
    "kind": "arxiv",
    "version": 1
  }
}