Pith Number

pith:WEINUJVN

pith:2009:WEINUJVNXAOOHUMTPGMP553SRJ

not attested not anchored not stored refs pending

Cubic String Boundary Value Problems and Cauchy Biorthogonal Polynomials

J. Szmigielski, M. Bertola, M. Gekhtman

arxiv:0904.2188 v1 · 2009-04-14 · 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{WEINUJVNXAOOHUMTPGMP553SRJ}

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	2026-05-18T02:14:00.480864Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b110da26adb81ce3d1937998fef7728a5802aaa666b33cfcbb9bc5fc143f9776

Aliases

arxiv: 0904.2188 · arxiv_version: 0904.2188v1 · doi: 10.48550/arxiv.0904.2188 · pith_short_12: WEINUJVNXAOO · pith_short_16: WEINUJVNXAOOHUMT · pith_short_8: WEINUJVN

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/WEINUJVNXAOOHUMTPGMP553SRJ \
  | 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: b110da26adb81ce3d1937998fef7728a5802aaa666b33cfcbb9bc5fc143f9776

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8ff237ca773347b9ffef6f2f7d3dc5d28cdaa9ab9b1fbe0c2ee2a0dce84f9f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2009-04-14T20:03:39Z",
    "title_canon_sha256": "6c807e494f1428a80f7eb9e2f51e725e332e0347a5ec2a620bcdd24a5bca831d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2188",
    "kind": "arxiv",
    "version": 1
  }
}