Pith Number

pith:4QKXWIQC

pith:2015:4QKXWIQC6DHP5N2GJYWZT4JEQO

not attested not anchored not stored refs pending

Gradient schemes for the Signorini and the obstacle problems, and application to hybrid mimetic mixed methods

Jerome Droniou, Yahya Alnashri

arxiv:1502.05765 v2 · 2015-02-20 · 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{4QKXWIQC6DHP5N2GJYWZT4JEQO}

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	2026-05-18T00:03:59.585706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4157b2202f0cefeb7464e2d99f124838492133cf0c10cbeefba550add454600

Aliases

arxiv: 1502.05765 · arxiv_version: 1502.05765v2 · doi: 10.48550/arxiv.1502.05765 · pith_short_12: 4QKXWIQC6DHP · pith_short_16: 4QKXWIQC6DHP5N2G · pith_short_8: 4QKXWIQC

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/4QKXWIQC6DHP5N2GJYWZT4JEQO \
  | 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: e4157b2202f0cefeb7464e2d99f124838492133cf0c10cbeefba550add454600

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "275dc750de9542e9a49e4b92190c85cc1886d694360b8c4ddb839f0715a541ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-02-20T02:34:47Z",
    "title_canon_sha256": "48df5c5481b71dde23d074b682a58ed633837e3da2433719a5b33cb74dfcf975"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05765",
    "kind": "arxiv",
    "version": 2
  }
}