Pith Number

pith:CFLE4NDA

pith:2021:CFLE4NDAY7YZZ5ABVLCXDDLM6N

not attested not anchored not stored refs pending

Image recognition via Vietoris-Rips complex

Jumpei Nagase, Ryotaro Sakamoto, Shiro Takagi, Yasuhiko Asao

arxiv:2109.02231 v1 · 2021-09-06 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CFLE4NDAY7YZZ5ABVLCXDDLM6N}

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	2026-07-05T03:11:40.102581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11564e3460c7f19cf401aac5718d6cf36f05114e20c123dc958372a68ad05e8b

Aliases

arxiv: 2109.02231 · arxiv_version: 2109.02231v1 · doi: 10.48550/arxiv.2109.02231 · pith_short_12: CFLE4NDAY7YZ · pith_short_16: CFLE4NDAY7YZZ5AB · pith_short_8: CFLE4NDA

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/CFLE4NDAY7YZZ5ABVLCXDDLM6N \
  | 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: 11564e3460c7f19cf401aac5718d6cf36f05114e20c123dc958372a68ad05e8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6065f8e580fc97af8c280a714189a5e2c76cbcc9d4affb9be8da72d6c0cce92",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-09-06T03:51:10Z",
    "title_canon_sha256": "4e665de343af4034eb610b15cbfb1c468e6e4ebe5151026f4be8620a3994dd72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.02231",
    "kind": "arxiv",
    "version": 1
  }
}