Pith Number

pith:6SSQ5SHU

pith:2019:6SSQ5SHUN3VPW7QQHBBUUTXIFI

not attested not anchored not stored refs pending

Constructing the F-Graph with a Symmetric Constraint for Subspace Clustering

Kai Xu, Wen-Bo Hu, Xiao-Jun Wu

arxiv:1912.07871 v1 · 2019-12-17 · 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{6SSQ5SHUN3VPW7QQHBBUUTXIFI}

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	2026-07-05T00:26:46.755663Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4a50ec8f46eeafb7e1038434a4ee82a18c0e76c3fbee130968f24327f612fee

Aliases

arxiv: 1912.07871 · arxiv_version: 1912.07871v1 · doi: 10.48550/arxiv.1912.07871 · pith_short_12: 6SSQ5SHUN3VP · pith_short_16: 6SSQ5SHUN3VPW7QQ · pith_short_8: 6SSQ5SHU

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/6SSQ5SHUN3VPW7QQHBBUUTXIFI \
  | 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: f4a50ec8f46eeafb7e1038434a4ee82a18c0e76c3fbee130968f24327f612fee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e46391aa96036d236816bebe6dc272bc8932c39f6160ae7083f3ee26a5295d0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-12-17T08:40:01Z",
    "title_canon_sha256": "5878b846f08fd4861522288fc940f8de78d83fcbd6e23968e43af7cebd7e018c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.07871",
    "kind": "arxiv",
    "version": 1
  }
}