Pith Number

pith:GZOQ2XDY

pith:2015:GZOQ2XDY3ZO5HYI2SXHLBNFJOZ

not attested not anchored not stored refs pending

Polyhyperbolic Cardinal Splines

Jeff Ledford

arxiv:1506.08744 v1 · 2015-06-29 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GZOQ2XDY3ZO5HYI2SXHLBNFJOZ}

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	2026-05-18T01:37:43.517580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

365d0d5c78de5dd3e11a95ceb0b4a9766dd316ce6afbf775bf8032b9339ea9a3

Aliases

arxiv: 1506.08744 · arxiv_version: 1506.08744v1 · doi: 10.48550/arxiv.1506.08744 · pith_short_12: GZOQ2XDY3ZO5 · pith_short_16: GZOQ2XDY3ZO5HYI2 · pith_short_8: GZOQ2XDY

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/GZOQ2XDY3ZO5HYI2SXHLBNFJOZ \
  | 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: 365d0d5c78de5dd3e11a95ceb0b4a9766dd316ce6afbf775bf8032b9339ea9a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54bde99c40d3eeb9983d2f0487a5a54fc886711ccd2f7630aadc80a1c0c5da28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2015-06-29T17:29:50Z",
    "title_canon_sha256": "a0e13be6de9bf0fc3b320903b31d2f7de337d35cc4935fd09ea51a9f49cc7cb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.08744",
    "kind": "arxiv",
    "version": 1
  }
}