Pith Number

pith:GDNSZ2WU

pith:2019:GDNSZ2WUAWNA2PZHGLAIKCSTSR

not attested not anchored not stored refs pending

Splitting and composition methods with embedded error estimators

Fernando Casas, Mechthild Thalhammer, Sergio Blanes

arxiv:1903.05391 v1 · 2019-03-13 · math.NA · cs.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{GDNSZ2WUAWNA2PZHGLAIKCSTSR}

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	2026-06-04T20:14:13.060460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30db2cead4059a0d3f2732c0850a539464da01195a5eba1601c6a2750ee632fc

Aliases

arxiv: 1903.05391 · arxiv_version: 1903.05391v1 · doi: 10.48550/arxiv.1903.05391 · pith_short_12: GDNSZ2WUAWNA · pith_short_16: GDNSZ2WUAWNA2PZH · pith_short_8: GDNSZ2WU

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/GDNSZ2WUAWNA2PZHGLAIKCSTSR \
  | 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: 30db2cead4059a0d3f2732c0850a539464da01195a5eba1601c6a2750ee632fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d6f03808e44d3ab4a81f0caaf244715fbd2c3ba63a5aaee5f8368bbfce80559",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-03-13T10:18:27Z",
    "title_canon_sha256": "3ae59f549af96673f9ddfe57ebb983dfb18ad129d848346a9be75ebd7227cb4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05391",
    "kind": "arxiv",
    "version": 1
  }
}