Pith Number

pith:V4PDWFMT

pith:2016:V4PDWFMTS2PJSQ5TJHLLF37ALB

not attested not anchored not stored refs pending

Improving Newton's method performance by parametrization: the case of Richards equation

Cl\'ement Canc\`es (RAPSODI), COFFEE), Konstantin Brenner (JAD

arxiv:1607.01508 v1 · 2016-07-06 · math.AP · 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{V4PDWFMTS2PJSQ5TJHLLF37ALB}

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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	2026-05-18T01:09:45.094767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af1e3b1593969e9943b349d6b2efe0584d433081d99b1dea4a74e82b70dfa7b2

Aliases

arxiv: 1607.01508 · arxiv_version: 1607.01508v1 · doi: 10.48550/arxiv.1607.01508 · pith_short_12: V4PDWFMTS2PJ · pith_short_16: V4PDWFMTS2PJSQ5T · pith_short_8: V4PDWFMT

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/V4PDWFMTS2PJSQ5TJHLLF37ALB \
  | 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: af1e3b1593969e9943b349d6b2efe0584d433081d99b1dea4a74e82b70dfa7b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "055bc942f13d3aadadf1e8899cf79bfcc2de0c03e96fa92abd2ff17bc0c660bf",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-07-06T08:15:03Z",
    "title_canon_sha256": "00e027627cbbdcfecec7680769bed3af3941188c5e23d6efda2b7b20b7a8faf4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.01508",
    "kind": "arxiv",
    "version": 1
  }
}