Pith Number

pith:POQM2QZD

pith:2014:POQM2QZDOTUPHG6NQ2YUB5G6D7

not attested not anchored not stored refs pending

Spaces of generalized splines over T-meshes

Cesare Bracco, Fabio Roman

arxiv:1401.7911 v3 · 2014-01-30 · 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{POQM2QZDOTUPHG6NQ2YUB5G6D7}

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	2026-05-18T02:41:59.599701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ba0cd432374e8f39bcd86b140f4de1fe2b66d212f83d3b687408ca0d0efa978

Aliases

arxiv: 1401.7911 · arxiv_version: 1401.7911v3 · doi: 10.48550/arxiv.1401.7911 · pith_short_12: POQM2QZDOTUP · pith_short_16: POQM2QZDOTUPHG6N · pith_short_8: POQM2QZD

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/POQM2QZDOTUPHG6NQ2YUB5G6D7 \
  | 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: 7ba0cd432374e8f39bcd86b140f4de1fe2b66d212f83d3b687408ca0d0efa978

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6eba12945bff933dc62a78fed9b8263e39f3d1d939da196450d0bacb8f62d056",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-01-30T16:28:25Z",
    "title_canon_sha256": "0af227edd9b8c46bd5832d42e20c91e36bc76c2daa1b5d2ead72dd88fbf1c2be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7911",
    "kind": "arxiv",
    "version": 3
  }
}