Pith Number

pith:SU3CBPFV

pith:2018:SU3CBPFVHKMMSOCBCDHIOB3YOU

not attested not anchored not stored refs pending

Neural Arithmetic Expression Calculator

Kaiyu Chen, Xipeng Qiu, Yihan Dong, Zitian Chen

arxiv:1809.08590 v1 · 2018-09-23 · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SU3CBPFVHKMMSOCBCDHIOB3YOU}

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	2026-05-18T00:05:04.017497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

953620bcb53a98c9384110ce870778751a6a9ea5a3cdad82d3629bb05b66040c

Aliases

arxiv: 1809.08590 · arxiv_version: 1809.08590v1 · doi: 10.48550/arxiv.1809.08590 · pith_short_12: SU3CBPFVHKMM · pith_short_16: SU3CBPFVHKMMSOCB · pith_short_8: SU3CBPFV

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/SU3CBPFVHKMMSOCBCDHIOB3YOU \
  | 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: 953620bcb53a98c9384110ce870778751a6a9ea5a3cdad82d3629bb05b66040c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06f75c1135ccfeeaa9b33d0f0f30b37c4b1ded98114aa705c78c4cfe5f648323",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2018-09-23T13:05:28Z",
    "title_canon_sha256": "5fd6c285856faeb0efcd5b764ecc57c21049645bffe5a5ede7bed25a990d87cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08590",
    "kind": "arxiv",
    "version": 1
  }
}