Pith Number

pith:TIYLVTC7

pith:2019:TIYLVTC7T6BDRKXMW76IVNEJC3

not attested not anchored not stored refs pending

On the spectral properties of real anti-tridiagonal Hankel matrices

Jo\~ao Lita da Silva

arxiv:1902.06998 v1 · 2019-02-19 · math.RA · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TIYLVTC7T6BDRKXMW76IVNEJC3}

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	2026-05-17T23:53:40.202299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a30bacc5f9f8238aaecb7fc8ab48916cffc8298773b25801bb05885357747cf

Aliases

arxiv: 1902.06998 · arxiv_version: 1902.06998v1 · doi: 10.48550/arxiv.1902.06998 · pith_short_12: TIYLVTC7T6BD · pith_short_16: TIYLVTC7T6BDRKXM · pith_short_8: TIYLVTC7

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/TIYLVTC7T6BDRKXMW76IVNEJC3 \
  | 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: 9a30bacc5f9f8238aaecb7fc8ab48916cffc8298773b25801bb05885357747cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4c257107dd7c2d5907ef98ed40f225f32ba6ac8e4331784a9c4c9f234e5ebe0",
    "cross_cats_sorted": [
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2019-02-19T11:16:40Z",
    "title_canon_sha256": "28e61ad51624bb030f0dd760e65e9bd7344c4248a3c1724c17bba9345c122fb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.06998",
    "kind": "arxiv",
    "version": 1
  }
}