Pith Number

pith:G7SZ2PBO

pith:2021:G7SZ2PBOL577VEZQDXTUIAEWHI

not attested not anchored not stored refs pending

10 Years Later: The Mathematics Subject Classification and Linked Open Data

Mila Runnwerth, Moritz Schubotz, Olaf Teschke, Patrick Ion, Susanne Arndt

arxiv:2107.13877 v2 · 2021-07-29 · cs.DL · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G7SZ2PBOL577VEZQDXTUIAEWHI}

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	2026-07-05T03:02:18.070825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37e59d3c2e5f7ffa93301de74400963a2a45af9afb41ca854c908017c86298e4

Aliases

arxiv: 2107.13877 · arxiv_version: 2107.13877v2 · doi: 10.48550/arxiv.2107.13877 · pith_short_12: G7SZ2PBOL577 · pith_short_16: G7SZ2PBOL577VEZQ · pith_short_8: G7SZ2PBO

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/G7SZ2PBOL577VEZQDXTUIAEWHI \
  | 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: 37e59d3c2e5f7ffa93301de74400963a2a45af9afb41ca854c908017c86298e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3c2d915e70a2a826e74878ade701486df3fb6bbe9b0389e5369d98d8df65c4d",
    "cross_cats_sorted": [
      "math.HO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2021-07-29T10:23:11Z",
    "title_canon_sha256": "102773d706089e86a98168084b585bda98bcd5a8afc8b83c26f064a1eacff926"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.13877",
    "kind": "arxiv",
    "version": 2
  }
}