Pith Number

pith:ZPMBMEFI

pith:2017:ZPMBMEFIG7GUJPQSRRUVHOXEEQ

not attested not anchored not stored refs pending

Spectral approximation of elliptic operators by the Hybrid High-Order method

Alexandre Ern, Matteo Cicuttin, Quanling Deng, Victor Calo

arxiv:1711.01135 v2 · 2017-11-03 · 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{ZPMBMEFIG7GUJPQSRRUVHOXEEQ}

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	2026-05-18T00:10:19.172082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbd81610a837cd44be128c6953bae42438c61d544c9c5fc5442d5e8cda7e9214

Aliases

arxiv: 1711.01135 · arxiv_version: 1711.01135v2 · doi: 10.48550/arxiv.1711.01135 · pith_short_12: ZPMBMEFIG7GU · pith_short_16: ZPMBMEFIG7GUJPQS · pith_short_8: ZPMBMEFI

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/ZPMBMEFIG7GUJPQSRRUVHOXEEQ \
  | 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: cbd81610a837cd44be128c6953bae42438c61d544c9c5fc5442d5e8cda7e9214

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "568c371bccdb6da75ba7d0983882f20f28d9212d9d7dd3b274f2a5610a8b15c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-11-03T13:03:59Z",
    "title_canon_sha256": "4800538c62bbf83a2d03b4a3d3b9e12c97b92a68e84c1e4db1c4f39148b0cc82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.01135",
    "kind": "arxiv",
    "version": 2
  }
}