Pith Number

pith:3NNR3VAB

pith:2020:3NNR3VAB56Q6YF5NWFN6SBAFA2

not attested not anchored not stored refs pending

AutoMSC: Automatic Assignment of Mathematics Subject Classification Labels

Andreas Kuehnemund, Bela Gipp, Corinna Breitinger, Moritz Schubotz, Olaf Teschke, Philipp Scharpf

arxiv:2005.12099 v2 · 2020-05-25 · cs.DL · 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{3NNR3VAB56Q6YF5NWFN6SBAFA2}

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	2026-07-05T01:49:52.310329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db5b1dd401efa1ec17adb15be9040506b2d328a585a094b7727458a18736dbc6

Aliases

arxiv: 2005.12099 · arxiv_version: 2005.12099v2 · doi: 10.48550/arxiv.2005.12099 · pith_short_12: 3NNR3VAB56Q6 · pith_short_16: 3NNR3VAB56Q6YF5N · pith_short_8: 3NNR3VAB

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/3NNR3VAB56Q6YF5NWFN6SBAFA2 \
  | 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: db5b1dd401efa1ec17adb15be9040506b2d328a585a094b7727458a18736dbc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fafcaec0c2e32c359ae37182b87868fa5c795ef122d220c4de230997995643c",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2020-05-25T13:26:45Z",
    "title_canon_sha256": "3a18d0c4b0ea3859e2f501afde78c3a44c00268f83092e6dd44c2b95cd744948"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.12099",
    "kind": "arxiv",
    "version": 2
  }
}