Pith Number

pith:TOIY4C5J

pith:2017:TOIY4C5J4GKFCFKH67G67FLLQ3

not attested not anchored not stored refs pending

Learning a Robust Representation via a Deep Network on Symmetric Positive Definite Manifolds

Xingyuan Bu, Yunde Jia, Yuwei Wu, Zhi Gao

arxiv:1711.06540 v2 · 2017-11-17 · 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{TOIY4C5J4GKFCFKH67G67FLLQ3}

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	2026-05-18T00:30:11.067228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b918e0ba9e194511547f7cdef956b86c78f9eaf41c778356783c019e84fd500

Aliases

arxiv: 1711.06540 · arxiv_version: 1711.06540v2 · doi: 10.48550/arxiv.1711.06540 · pith_short_12: TOIY4C5J4GKF · pith_short_16: TOIY4C5J4GKFCFKH · pith_short_8: TOIY4C5J

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/TOIY4C5J4GKFCFKH67G67FLLQ3 \
  | 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: 9b918e0ba9e194511547f7cdef956b86c78f9eaf41c778356783c019e84fd500

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abc8f392c5427c8218b4e5155311ab16e62e1ac05343da621166fb56b510fc0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-11-17T14:04:12Z",
    "title_canon_sha256": "d9d600f60390e3c01a5e36fb5e4018ca64b49de319f3f10530b786d9e7be2b76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.06540",
    "kind": "arxiv",
    "version": 2
  }
}