Pith Number

pith:XOH75NSS

pith:2013:XOH75NSSL6RJAB6DAVKH4CDMA7

not attested not anchored not stored refs pending

Separation of variables in an asymmetric cyclidic coordinate system

Hans Volkmer, Howard S. Cohl

arxiv:1301.3559 v1 · 2013-01-16 · math.CA · math-ph · math.AP · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XOH75NSSL6RJAB6DAVKH4CDMA7}

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	2026-05-18T01:52:06.816725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb8ffeb6525fa29007c305547e086c07e293368c13b76fcbb530064723a3686b

Aliases

arxiv: 1301.3559 · arxiv_version: 1301.3559v1 · doi: 10.48550/arxiv.1301.3559 · pith_short_12: XOH75NSSL6RJ · pith_short_16: XOH75NSSL6RJAB6D · pith_short_8: XOH75NSS

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/XOH75NSSL6RJAB6DAVKH4CDMA7 \
  | 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: bb8ffeb6525fa29007c305547e086c07e293368c13b76fcbb530064723a3686b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8efe1c6a285c5c28dfc2db30b36a24b9961c3f9e4eee010ba3d6d82cfbb8d9ef",
    "cross_cats_sorted": [
      "math-ph",
      "math.AP",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "math.CA",
    "submitted_at": "2013-01-16T02:25:45Z",
    "title_canon_sha256": "c7e64e682e4134d7e0be5dc1d07239779d87f734cd11296e738beaf906f152de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3559",
    "kind": "arxiv",
    "version": 1
  }
}