Pith Number

pith:SDSYZ6G4

pith:2019:SDSYZ6G4I6TBMFEYLP7CV6CSLY

not attested not anchored not stored refs pending

Polynomial spline spaces of non-uniform bi-degree on T-meshes: Combinatorial bounds on the dimension

Bernard Mourrain (AROMATH), Deepesh Toshniwal (ICES), Thomas Hughes (ICES)

arxiv:1903.05949 v1 · 2019-03-14 · math.AG · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SDSYZ6G4I6TBMFEYLP7CV6CSLY}

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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	2026-05-17T23:51:15.733303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90e58cf8dc47a61614985bfe2af8525e04cd44523ad3810c7690b5fa9aa023e9

Aliases

arxiv: 1903.05949 · arxiv_version: 1903.05949v1 · doi: 10.48550/arxiv.1903.05949 · pith_short_12: SDSYZ6G4I6TB · pith_short_16: SDSYZ6G4I6TBMFEY · pith_short_8: SDSYZ6G4

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/SDSYZ6G4I6TBMFEYLP7CV6CSLY \
  | 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: 90e58cf8dc47a61614985bfe2af8525e04cd44523ad3810c7690b5fa9aa023e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e18342af101f7a8692b4e5dcd302af46293cd194fb6a3588b52d248836fa24b",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-03-14T12:49:08Z",
    "title_canon_sha256": "66bcfb1d573a0951fe8643211686e709d6cae2893de6400aaea04f9b4049511b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05949",
    "kind": "arxiv",
    "version": 1
  }
}