Pith Number

pith:QD4NPQLD

pith:2015:QD4NPQLDUEHRJTDLGTVV5EEKMJ

not attested not anchored not stored refs pending

Eigenvalue homogenization problem with indefinite weights

A.M. Salort, J. Fern\'andez Bonder, J.P. Pinasco

arxiv:1504.03893 v1 · 2015-04-15 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QD4NPQLDUEHRJTDLGTVV5EEKMJ}

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	2026-05-18T02:18:41.754082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80f8d7c163a10f14cc6b34eb5e908a62462bf1fdd9fa1c605a56e0baac92096f

Aliases

arxiv: 1504.03893 · arxiv_version: 1504.03893v1 · doi: 10.48550/arxiv.1504.03893 · pith_short_12: QD4NPQLDUEHR · pith_short_16: QD4NPQLDUEHRJTDL · pith_short_8: QD4NPQLD

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/QD4NPQLDUEHRJTDLGTVV5EEKMJ \
  | 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: 80f8d7c163a10f14cc6b34eb5e908a62462bf1fdd9fa1c605a56e0baac92096f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9651c0e7b818c061bcbd2aa4ef9481f8e5e3c98bfbe2f15eef8ae613c3dafd13",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-04-15T12:52:36Z",
    "title_canon_sha256": "738f85f1376ecef8afe730364b78c467535cb75e6900d04b0c8c4af7324dacdc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03893",
    "kind": "arxiv",
    "version": 1
  }
}