Pith Number

pith:B73KJPER

pith:2016:B73KJPERTXKO675P4SYMQVGQZ7

not attested not anchored not stored refs pending

Error estimate for a finite element approximation of the solution of a linear parabolic equation on a two-dimensional surface

Heiko Kr\"oner

arxiv:1604.04665 v2 · 2016-04-15 · 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{B73KJPERTXKO675P4SYMQVGQZ7}

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	2026-05-18T01:16:32.684752Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ff6a4bc919dd4ef7fafe4b0c854d0cff463c4c619a61bf635ebf4c345fac690

Aliases

arxiv: 1604.04665 · arxiv_version: 1604.04665v2 · doi: 10.48550/arxiv.1604.04665 · pith_short_12: B73KJPERTXKO · pith_short_16: B73KJPERTXKO675P · pith_short_8: B73KJPER

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/B73KJPERTXKO675P4SYMQVGQZ7 \
  | 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: 0ff6a4bc919dd4ef7fafe4b0c854d0cff463c4c619a61bf635ebf4c345fac690

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18f9dd117f3e0baf885e42cb0951da8b18f07720b7cb972f0342ce718988b5d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-04-15T23:55:08Z",
    "title_canon_sha256": "dcc74692b4b45e592d6727ff0d195204b1acc0939703c00af03279b073a4d475"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.04665",
    "kind": "arxiv",
    "version": 2
  }
}