Pith Number

pith:W4KWCOX7

pith:2016:W4KWCOX7D2OPFC33YDUGE54GID

not attested not anchored not stored refs pending

Splitting methods for constrained diffusion-reaction systems

Alexander Ostermann, Robert Altmann

arxiv:1607.07683 v1 · 2016-07-26 · 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{W4KWCOX7D2OPFC33YDUGE54GID}

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	2026-05-18T01:10:27.971151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b715613aff1e9cf28b7bc0e862778640fbce8459c30193e882c40c67e291d49d

Aliases

arxiv: 1607.07683 · arxiv_version: 1607.07683v1 · doi: 10.48550/arxiv.1607.07683 · pith_short_12: W4KWCOX7D2OP · pith_short_16: W4KWCOX7D2OPFC33 · pith_short_8: W4KWCOX7

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/W4KWCOX7D2OPFC33YDUGE54GID \
  | 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: b715613aff1e9cf28b7bc0e862778640fbce8459c30193e882c40c67e291d49d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e82438a9d51a8ec730dc249a4687e0c479ab2c77c7c7ad373df1488079df4e03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-07-26T13:18:40Z",
    "title_canon_sha256": "eb5ba4ae781a38aa9a373d5f8721ec416fbdb26eb889a2985f3765ef5ccf0cb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.07683",
    "kind": "arxiv",
    "version": 1
  }
}