Pith Number

pith:T6LTG4RS

pith:2018:T6LTG4RS4JNP7KL4J5H4HX6RBP

not attested not anchored not stored refs pending

The Influence of Numerical Error on an Inverse Problem Methodology in PDE Models

D. M. Bortz, John T. Nardini

arxiv:1807.09652 v1 · 2018-07-15 · 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{T6LTG4RS4JNP7KL4J5H4HX6RBP}

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	2026-05-18T00:09:50.699635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f97337232e25affa97c4f4fc3dfd10bd761ed273e0731644f542bdbabe35f8a

Aliases

arxiv: 1807.09652 · arxiv_version: 1807.09652v1 · doi: 10.48550/arxiv.1807.09652 · pith_short_12: T6LTG4RS4JNP · pith_short_16: T6LTG4RS4JNP7KL4 · pith_short_8: T6LTG4RS

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/T6LTG4RS4JNP7KL4J5H4HX6RBP \
  | 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: 9f97337232e25affa97c4f4fc3dfd10bd761ed273e0731644f542bdbabe35f8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "273249222303248d5afb32e989474c1af7f423e80d3f312e81c50fbe9ca20fa2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-07-15T15:12:40Z",
    "title_canon_sha256": "c25b50115ff430f45d07a99a44dac77e869b67976131a36a97384504b4e0d0c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09652",
    "kind": "arxiv",
    "version": 1
  }
}