Pith Number

pith:ZDI7PNEI

pith:2025:ZDI7PNEI46G5S4GDBTFMFXGYVW

not attested not anchored not stored refs pending

On Erlang mixture approximations for differential equations with distributed time delays

Tobias K. S. Ritschel

arxiv:2502.12984 v4 · 2025-02-18 · math.DS · cs.NA · cs.SY · eess.SY · 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{ZDI7PNEI46G5S4GDBTFMFXGYVW}

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	2026-05-20T00:00:17.752950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8d1f7b488e78dd970c30ccac2dcd8ad90b176554d3732838e59bc06b80d91e2

Aliases

arxiv: 2502.12984 · arxiv_version: 2502.12984v4 · doi: 10.48550/arxiv.2502.12984 · pith_short_12: ZDI7PNEI46G5 · pith_short_16: ZDI7PNEI46G5S4GD · pith_short_8: ZDI7PNEI

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/ZDI7PNEI46G5S4GDBTFMFXGYVW \
  | 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: c8d1f7b488e78dd970c30ccac2dcd8ad90b176554d3732838e59bc06b80d91e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fb03fd71a548dacb99d7e24cd8c95c6e1161d8806bd36c85eb7873b62da064f",
    "cross_cats_sorted": [
      "cs.NA",
      "cs.SY",
      "eess.SY",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2025-02-18T16:06:17Z",
    "title_canon_sha256": "29db220ee243d6801d746f5d83cf2f6bf27f2c0e0b3a35f4e7ab01ce8cd8ad64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.12984",
    "kind": "arxiv",
    "version": 4
  }
}