Pith Number

pith:EBPJ7GPW

pith:2008:EBPJ7GPW7LEAE5R6FZ5OXUPXRH

not attested not anchored not stored refs pending

Scarring for Quantum Maps with Simple Spectrum

Dubi Kelmer

arxiv:0801.2493 v1 · 2008-01-16 · math-ph · math.MP · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EBPJ7GPW7LEAE5R6FZ5OXUPXRH}

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	2026-05-17T23:53:20.243160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

205e9f99f6fac802763e2e7aebd1f789d4874c384cf4e8c33569f7405740dc40

Aliases

arxiv: 0801.2493 · arxiv_version: 0801.2493v1 · doi: 10.48550/arxiv.0801.2493 · pith_short_12: EBPJ7GPW7LEA · pith_short_16: EBPJ7GPW7LEAE5R6 · pith_short_8: EBPJ7GPW

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/EBPJ7GPW7LEAE5R6FZ5OXUPXRH \
  | 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: 205e9f99f6fac802763e2e7aebd1f789d4874c384cf4e8c33569f7405740dc40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28b847530bad1430515e1401443671de303b607a44b6c2b450c7e215a956523f",
    "cross_cats_sorted": [
      "math.MP",
      "math.NT"
    ],
    "license": "",
    "primary_cat": "math-ph",
    "submitted_at": "2008-01-16T14:09:07Z",
    "title_canon_sha256": "dd3d4cdaf80b22a1771ae38684cef221573826faadd7944a0aefd8caf9522f95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.2493",
    "kind": "arxiv",
    "version": 1
  }
}