Pith Number

pith:I37SHVFC

pith:2016:I37SHVFC7PUICCJEY2WNF5TJ7L

not attested not anchored not stored refs pending

Multiple perturbations of a singular eigenvalue problem

Du\v{s}an Repov\v{s}, Matija Cencelj, \v{Z}iga Virk

arxiv:1602.06749 v1 · 2016-02-22 · 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{I37SHVFC7PUICCJEY2WNF5TJ7L}

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	2026-05-18T01:20:13.225164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46ff23d4a2fbe8810924c6acd2f669faf115f290eee86814afd232a18117cd47

Aliases

arxiv: 1602.06749 · arxiv_version: 1602.06749v1 · doi: 10.48550/arxiv.1602.06749 · pith_short_12: I37SHVFC7PUI · pith_short_16: I37SHVFC7PUICCJE · pith_short_8: I37SHVFC

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/I37SHVFC7PUICCJEY2WNF5TJ7L \
  | 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: 46ff23d4a2fbe8810924c6acd2f669faf115f290eee86814afd232a18117cd47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c430b0e0ef8cc754094103de40d858fa5c240516bcecbb4b4751525ff8bd059",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-02-22T12:32:13Z",
    "title_canon_sha256": "768278cf169e27a1dfa785bf528e18b821cd8cfa5c3663d874bed76323c98993"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.06749",
    "kind": "arxiv",
    "version": 1
  }
}