Pith Number

pith:QBQCR6CU

pith:2006:QBQCR6CUUBNSRTUMDKROKCMLUC

not attested not anchored not stored refs pending

Degenerate elliptic operators: capacity, flux and separation

Adam Sikora, Derek W. Robinson

arxiv:math/0601351 v1 · 2006-01-14 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QBQCR6CUUBNSRTUMDKROKCMLUC}

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	2026-05-18T03:03:22.961195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

806028f854a05b28ce8c1aa2e5098ba0ad2db1dd45e0d3106ae7d40e1637666d

Aliases

arxiv: math/0601351 · arxiv_version: math/0601351v1 · doi: 10.48550/arxiv.math/0601351 · pith_short_12: QBQCR6CUUBNS · pith_short_16: QBQCR6CUUBNSRTUM · pith_short_8: QBQCR6CU

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/QBQCR6CUUBNSRTUMDKROKCMLUC \
  | 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: 806028f854a05b28ce8c1aa2e5098ba0ad2db1dd45e0d3106ae7d40e1637666d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d777b140416166585997fa3429ddf9ceacfae7bc46fcd45fa142f56debec08c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AP",
    "submitted_at": "2006-01-14T02:06:26Z",
    "title_canon_sha256": "8454733d97c24511197915d7138cefdcbde74ceac4faf2defa3ee67b292208ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0601351",
    "kind": "arxiv",
    "version": 1
  }
}