Pith Number

pith:T7OVKF2U

pith:2017:T7OVKF2U4CA4AKPUYHUMQ4ZGCO

not attested not anchored not stored refs pending

On Existence and Uniqueness of Viscosity Solutions for Second Order Fully Nonlinear PDEs with Caputo time fractional derivatives

Tokinaga Namba

arxiv:1709.02949 v2 · 2017-09-09 · 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{T7OVKF2U4CA4AKPUYHUMQ4ZGCO}

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	2026-05-18T00:16:08.726529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fdd551754e081c029f4c1e8c8732613a2d57313fe5b8d8e0bd55e653f94fad4

Aliases

arxiv: 1709.02949 · arxiv_version: 1709.02949v2 · doi: 10.48550/arxiv.1709.02949 · pith_short_12: T7OVKF2U4CA4 · pith_short_16: T7OVKF2U4CA4AKPU · pith_short_8: T7OVKF2U

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/T7OVKF2U4CA4AKPUYHUMQ4ZGCO \
  | 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: 9fdd551754e081c029f4c1e8c8732613a2d57313fe5b8d8e0bd55e653f94fad4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06c428d7c6af807ec97e70db7c06be1b127fa9431f2dccc70f1dd45eaad528f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-09-09T12:29:12Z",
    "title_canon_sha256": "6282e36ac6416b83b4f2b518fc3c8ae40600e44e4c21bac32b5a005815f0982a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02949",
    "kind": "arxiv",
    "version": 2
  }
}