Pith Number

pith:4FIDWP7H

pith:2014:4FIDWP7HPWGL2IGEDJILQSUE5E

not attested not anchored not stored refs pending

Stable difference methods for block-oriented adaptive grids

Anna Nissen, Katharina Kormann, Kristoffer Virta, Magnus Grandin

arxiv:1405.0735 v1 · 2014-05-04 · 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{4FIDWP7HPWGL2IGEDJILQSUE5E}

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	2026-05-17T23:52:19.431507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1503b3fe77d8cbd20c41a50b84a84e93a23fad421162a7e4334a3630f457b64

Aliases

arxiv: 1405.0735 · arxiv_version: 1405.0735v1 · doi: 10.48550/arxiv.1405.0735 · pith_short_12: 4FIDWP7HPWGL · pith_short_16: 4FIDWP7HPWGL2IGE · pith_short_8: 4FIDWP7H

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/4FIDWP7HPWGL2IGEDJILQSUE5E \
  | 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: e1503b3fe77d8cbd20c41a50b84a84e93a23fad421162a7e4334a3630f457b64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87d4ed2360839d1c07bd6e0155b44a156e9c64e3f8da5a2731e304bedf111909",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-05-04T20:05:11Z",
    "title_canon_sha256": "146111aa127faaa0513cbd773cc15d716cf6818fcedd6c51256ea239c3f4110b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.0735",
    "kind": "arxiv",
    "version": 1
  }
}