Pith Number

pith:EB57WFSI

pith:2020:EB57WFSIVPIO73WSGSLDGM3H6T

not attested not anchored not stored refs pending

ARQMath Lab: An Incubator for Semantic Formula Search in zbMATH Open?

Andre Greiner-Petter, Bela Gipp, Malte Ostendorff, Moritz Schubotz, Olaf Teschke, Philipp Scharpf

arxiv:2012.02413 v2 · 2020-12-04 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EB57WFSIVPIO73WSGSLDGM3H6T}

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	2026-07-05T01:58:32.935781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

207bfb1648abd0efeed23496333367f4f44e7b835d462ae1b6faac49444c9aa1

Aliases

arxiv: 2012.02413 · arxiv_version: 2012.02413v2 · doi: 10.48550/arxiv.2012.02413 · pith_short_12: EB57WFSIVPIO · pith_short_16: EB57WFSIVPIO73WS · pith_short_8: EB57WFSI

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/EB57WFSIVPIO73WSGSLDGM3H6T \
  | 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: 207bfb1648abd0efeed23496333367f4f44e7b835d462ae1b6faac49444c9aa1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ecb2b5025a756a2a0cd37c5f8e398d1220987a11418ad800966fa4d4b7350f3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2020-12-04T05:51:01Z",
    "title_canon_sha256": "972828ee54a209f08e198871b67c4e3bbe4b5f271d872e308df92d477354fd24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.02413",
    "kind": "arxiv",
    "version": 2
  }
}