Pith Number

pith:34XQ3QP7

pith:2015:34XQ3QP72DRG2OR6D2MUUTF2RV

not attested not anchored not stored refs pending

Fast and flexible interpolation via PUM with applications in population dynamics

Alessandra De Rossi, Emma Perracchione, Roberto Cavoretto

arxiv:1512.03934 v1 · 2015-12-12 · 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{34XQ3QP72DRG2OR6D2MUUTF2RV}

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	2026-05-18T01:24:23.558497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df2f0dc1ffd0e26d3a3e1e994a4cba8d700775c7f5bc405df496576944cc4126

Aliases

arxiv: 1512.03934 · arxiv_version: 1512.03934v1 · doi: 10.48550/arxiv.1512.03934 · pith_short_12: 34XQ3QP72DRG · pith_short_16: 34XQ3QP72DRG2OR6 · pith_short_8: 34XQ3QP7

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/34XQ3QP72DRG2OR6D2MUUTF2RV \
  | 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: df2f0dc1ffd0e26d3a3e1e994a4cba8d700775c7f5bc405df496576944cc4126

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be24ad30365203f54447ce9a58bef806bffdd7b9a69548a83b844163e607b201",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-12-12T16:48:38Z",
    "title_canon_sha256": "4cd5db5326dd58e5a1c3cd3547b56f16c20f2116e3fb184fa37a92fe5ecadb4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.03934",
    "kind": "arxiv",
    "version": 1
  }
}