Pith Number

pith:42RDNVJG

pith:2014:42RDNVJGVDIZDAWMVPGZYDM26P

not attested not anchored not stored refs pending

Recovery-Based Error Estimators for Diffusion Problems: Explicit Formulas

Shun Zhang, Zhiqiang Cai

arxiv:1407.4377 v1 · 2014-07-16 · math.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{42RDNVJGVDIZDAWMVPGZYDM26P}

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	2026-05-18T02:47:30.577921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6a236d526a8d19182ccabcd9c0d9af3d302d1896d86331b8849aab0ec33593a

Aliases

arxiv: 1407.4377 · arxiv_version: 1407.4377v1 · doi: 10.48550/arxiv.1407.4377 · pith_short_12: 42RDNVJGVDIZ · pith_short_16: 42RDNVJGVDIZDAWM · pith_short_8: 42RDNVJG

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/42RDNVJGVDIZDAWMVPGZYDM26P \
  | 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: e6a236d526a8d19182ccabcd9c0d9af3d302d1896d86331b8849aab0ec33593a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38c4ae6c6ac4c61e33c37f25da42e7895c26e51f58a657ce186efb451f602f11",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-07-16T16:30:19Z",
    "title_canon_sha256": "ca1ee6f922702147f2a311771b9bd39aa6410b1fb9ffbd94e05bcd535260468c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.4377",
    "kind": "arxiv",
    "version": 1
  }
}