Pith Number

pith:ZTAPL7SY

pith:2025:ZTAPL7SY3M65AKALNVNS6ZTDLX

not attested not anchored not stored refs pending

chebgreen: Learning and Interpolating Continuous Empirical Green's Functions from Data

Christopher Earls, Harshwardhan Praveen, Jacob Brown

arxiv:2501.18715 v5 · 2025-01-30 · cs.LG · cs.NA · 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{ZTAPL7SY3M65AKALNVNS6ZTDLX}

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	2026-07-05T12:02:40.136749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccc0f5fe58db3dd0280b6d5b2f66635dcee07962d29c373be758c6844e328f0a

Aliases

arxiv: 2501.18715 · arxiv_version: 2501.18715v5 · doi: 10.48550/arxiv.2501.18715 · pith_short_12: ZTAPL7SY3M65 · pith_short_16: ZTAPL7SY3M65AKAL · pith_short_8: ZTAPL7SY

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/ZTAPL7SY3M65AKALNVNS6ZTDLX \
  | 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: ccc0f5fe58db3dd0280b6d5b2f66635dcee07962d29c373be758c6844e328f0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55ff3fbd61b4576c1f994b4af35d7f499de84dc31ee615f0d7afbda71eaf6438",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-01-30T19:26:05Z",
    "title_canon_sha256": "1f938c0bb337155913384cfa8c787564242b5fbf9959b2175f29cd6bd421d63c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.18715",
    "kind": "arxiv",
    "version": 5
  }
}