Pith Number

pith:AKWT2GCB

pith:2009:AKWT2GCBNSZ5MXBGSW52DVNCHE

not attested not anchored not stored refs pending

Whittaker-Hill equation and semifinite-gap Schroedinger operators

A.D. Hemery, A.P. Veselov

arxiv:0906.1697 v2 · 2009-06-09 · 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{AKWT2GCBNSZ5MXBGSW52DVNCHE}

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	2026-05-18T02:13:21.294980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02ad3d18416cb3d65c2695bba1d5a239081729121b1a6049fea077d228924895

Aliases

arxiv: 0906.1697 · arxiv_version: 0906.1697v2 · doi: 10.48550/arxiv.0906.1697 · pith_short_12: AKWT2GCBNSZ5 · pith_short_16: AKWT2GCBNSZ5MXBG · pith_short_8: AKWT2GCB

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/AKWT2GCBNSZ5MXBGSW52DVNCHE \
  | 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: 02ad3d18416cb3d65c2695bba1d5a239081729121b1a6049fea077d228924895

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad9ff71cd9575829035cf43b8c87530ee1b42d0e5ab17024a6bef8d7272b5ae9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2009-06-09T19:56:51Z",
    "title_canon_sha256": "b4947adea5b0f8eaf981841f009885c78db975deb8ddb11da608b86908e57967"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.1697",
    "kind": "arxiv",
    "version": 2
  }
}