Pith Number

pith:E5YERA5Y

pith:2021:E5YERA5YCFSCYPFSAJKZPEV7RR

not attested not anchored not stored refs pending

Mapper-type algorithms for complex data and relations

Davide Gurnari, Pawe{\l} D{\l}otko, Radmila Sazdanovic

arxiv:2109.00831 v2 · 2021-09-02 · math.AT · cs.AI · math.CO · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E5YERA5YCFSCYPFSAJKZPEV7RR}

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	2026-07-05T05:55:06.748199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27704883b811642c3cb202559792bf8c749716672ae722532ae32c8e8dfb35ea

Aliases

arxiv: 2109.00831 · arxiv_version: 2109.00831v2 · doi: 10.48550/arxiv.2109.00831 · pith_short_12: E5YERA5YCFSC · pith_short_16: E5YERA5YCFSCYPFS · pith_short_8: E5YERA5Y

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/E5YERA5YCFSCYPFSAJKZPEV7RR \
  | 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: 27704883b811642c3cb202559792bf8c749716672ae722532ae32c8e8dfb35ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7baa7aa4668a9ab62de66e6f374e422bbf3653d0efdc3412bbd228ee3b98111c",
    "cross_cats_sorted": [
      "cs.AI",
      "math.CO",
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2021-09-02T10:30:51Z",
    "title_canon_sha256": "a4692545c4e80b3d722db71f6d1171e07e89c7309d08390c78779fc17c8b8029"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00831",
    "kind": "arxiv",
    "version": 2
  }
}