Pith Number

pith:T7USQ4MQ

pith:2026:T7USQ4MQVAKY25JBJAWIY5O3R5

not attested not anchored not stored refs pending

Existence and uniqueness of $L^1$-solutions to time-fractional nonlinear diffusion equations

Mikiya Kametaka, Tatsuki Kawakami

arxiv:2601.15618 v2 · 2026-01-22 · 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{T7USQ4MQVAKY25JBJAWIY5O3R5}

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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	2026-05-20T01:05:06.757760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fe9287190a8158d7521482c8c75db8f43cb8f37aaf6d04a072b00e84fb47b9b

Aliases

arxiv: 2601.15618 · arxiv_version: 2601.15618v2 · doi: 10.48550/arxiv.2601.15618 · pith_short_12: T7USQ4MQVAKY · pith_short_16: T7USQ4MQVAKY25JB · pith_short_8: T7USQ4MQ

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/T7USQ4MQVAKY25JBJAWIY5O3R5 \
  | 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: 9fe9287190a8158d7521482c8c75db8f43cb8f37aaf6d04a072b00e84fb47b9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d59645af4fcd910329521def6d79154e5139a6dee3d7ee5e8fb2eff3a722282",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2026-01-22T03:48:53Z",
    "title_canon_sha256": "d5bb03e836a5c63a1272d7790870ce3482fda98fe994dbeaa69729bf7a720da5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.15618",
    "kind": "arxiv",
    "version": 2
  }
}