Pith Number

pith:CBFJA374

pith:2022:CBFJA374N5354NFOB6XDLIZJEL

not attested not anchored not stored refs pending

Learning Green's functions associated with time-dependent partial differential equations

Alex Townsend, Nicolas Boull\'e, Seick Kim, Tianyi Shi

arxiv:2204.12789 v2 · 2022-04-27 · math.NA · cs.LG · cs.NA · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CBFJA374N5354NFOB6XDLIZJEL}

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	2026-07-05T04:45:59.426355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

104a906ffc6f77de34ae0fae35a32922cb5598731a9c536b879b104075a42919

Aliases

arxiv: 2204.12789 · arxiv_version: 2204.12789v2 · doi: 10.48550/arxiv.2204.12789 · pith_short_12: CBFJA374N535 · pith_short_16: CBFJA374N5354NFO · pith_short_8: CBFJA374

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/CBFJA374N5354NFOB6XDLIZJEL \
  | 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: 104a906ffc6f77de34ae0fae35a32922cb5598731a9c536b879b104075a42919

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43bb75357440cb6f364b76058f525938770e8be95b799b8ba28ffcfeb38485c6",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA",
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2022-04-27T09:23:39Z",
    "title_canon_sha256": "8659bdb2e4c7a0cb2aae6bfc43e2b3e776e6c0add9f82e0f593a3fc22474777c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.12789",
    "kind": "arxiv",
    "version": 2
  }
}