Pith Number

pith:C66KMP7R

pith:2014:C66KMP7RMQHPLKW46LZLDB3Z3I

not attested not anchored not stored refs pending

Tau functions and the limit of block Toeplitz determinants

Chao-Zhong Wu, Mattia Cafasso

arxiv:1404.5149 v1 · 2014-04-21 · math-ph · math.MP · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C66KMP7RMQHPLKW46LZLDB3Z3I}

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	2026-05-18T01:29:59.549549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17bca63ff1640ef5aadcf2f2b18779da014c406185fae1fef2a59c998ed808b0

Aliases

arxiv: 1404.5149 · arxiv_version: 1404.5149v1 · doi: 10.48550/arxiv.1404.5149 · pith_short_12: C66KMP7RMQHP · pith_short_16: C66KMP7RMQHPLKW4 · pith_short_8: C66KMP7R

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/C66KMP7RMQHPLKW46LZLDB3Z3I \
  | 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: 17bca63ff1640ef5aadcf2f2b18779da014c406185fae1fef2a59c998ed808b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d258f6ca10173e8d37992c2226a8bbd0111ab335638147f15cbe689e3f60ab8",
    "cross_cats_sorted": [
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2014-04-21T09:32:50Z",
    "title_canon_sha256": "81677649af903ac1d8efbbc62507a1c59825f12ac85233c16a0511f75102d5b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.5149",
    "kind": "arxiv",
    "version": 1
  }
}