Pith Number

pith:NQ6JGTAP

pith:2017:NQ6JGTAPPMCUPAR7C75DOKT3DM

not attested not anchored not stored refs pending

An adaptive $hp$-refinement strategy with computable guaranteed bound on the error reduction factor

Alexandre Ern, Iain Smears, Martin Vohral\'ik, Patrik Daniel

arxiv:1712.09821 v2 · 2017-12-28 · 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{NQ6JGTAPPMCUPAR7C75DOKT3DM}

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	2026-05-18T00:03:19.135856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c3c934c0f7b0547823f17fa372a7b1b3c97b0cd12a1a13faa39b304b8ebf658

Aliases

arxiv: 1712.09821 · arxiv_version: 1712.09821v2 · doi: 10.48550/arxiv.1712.09821 · pith_short_12: NQ6JGTAPPMCU · pith_short_16: NQ6JGTAPPMCUPAR7 · pith_short_8: NQ6JGTAP

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/NQ6JGTAPPMCUPAR7C75DOKT3DM \
  | 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: 6c3c934c0f7b0547823f17fa372a7b1b3c97b0cd12a1a13faa39b304b8ebf658

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a39745265d9d3f0806e7d5089a97a897e76b6d595a2e4bcef784cdcb56d09eea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-12-28T10:54:51Z",
    "title_canon_sha256": "f18812c55d403b65c401daaaf45c98a561b8e549bb2318a5b62e217548b58c7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.09821",
    "kind": "arxiv",
    "version": 2
  }
}