Pith Number

pith:QSL5X5B2

pith:2012:QSL5X5B252ZZZPG7ZH7OUVFDRE

not attested not anchored not stored refs pending

Non-consistent approximations of self-adjoint eigenproblems: Application to the supercell method

Eric Canc\`es, Virginie Ehrlacher, Yvon Maday

arxiv:1205.0331 v1 · 2012-05-02 · math.FA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSL5X5B252ZZZPG7ZH7OUVFDRE}

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	2026-05-18T03:56:34.764384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8497dbf43aeeb39cbcdfc9feea54a3892b4ac937f870ab894f623f35e77591ae

Aliases

arxiv: 1205.0331 · arxiv_version: 1205.0331v1 · doi: 10.48550/arxiv.1205.0331 · pith_short_12: QSL5X5B252ZZ · pith_short_16: QSL5X5B252ZZZPG7 · pith_short_8: QSL5X5B2

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/QSL5X5B252ZZZPG7ZH7OUVFDRE \
  | 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: 8497dbf43aeeb39cbcdfc9feea54a3892b4ac937f870ab894f623f35e77591ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ba5bb534ece997d812a7ab6001c70bcd16a936bac1642fa692418734f5e81b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2012-05-02T06:23:49Z",
    "title_canon_sha256": "1d49fedea2295b47079d929d3f33f839d2c038446da6550a67798f420f5904a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0331",
    "kind": "arxiv",
    "version": 1
  }
}