Pith Number

pith:SPJG3WHT

pith:2022:SPJG3WHTHBNSNDUT4NPTZFXV4D

not attested not anchored not stored refs pending

A posteriori error analysis for approximations of time-fractional subdiffusion problems

Charalambos G. Makridakis, Lehel Banjai

arxiv:2203.00340 v1 · 2022-03-01 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPJG3WHTHBNSNDUT4NPTZFXV4D}

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	2026-07-05T04:01:16.205392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93d26dd8f3385b268e93e35f3c96f5e0d7fd0f95fde80fde450ab0900d1ee426

Aliases

arxiv: 2203.00340 · arxiv_version: 2203.00340v1 · doi: 10.48550/arxiv.2203.00340 · pith_short_12: SPJG3WHTHBNS · pith_short_16: SPJG3WHTHBNSNDUT · pith_short_8: SPJG3WHT

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/SPJG3WHTHBNSNDUT4NPTZFXV4D \
  | 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: 93d26dd8f3385b268e93e35f3c96f5e0d7fd0f95fde80fde450ab0900d1ee426

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8fa64009e2957d279598a1e486f85c4a505e59e5f0ea7443b31c3fafbdf2502",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2022-03-01T10:31:53Z",
    "title_canon_sha256": "902574460ab468ecf645642434379aacb1ccce2ec3c36a7581fda5386dfd06b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.00340",
    "kind": "arxiv",
    "version": 1
  }
}