Pith Number

pith:QNWIJEVR

pith:2018:QNWIJEVRZEE7VYF5GSNGFSISB4

not attested not anchored not stored refs pending

DEFRAG: Deep Euclidean Feature Representations through Adaptation on the Grassmann Manifold

Andreas Savakis, Breton Minnehan

arxiv:1806.07688 v1 · 2018-06-20 · 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{QNWIJEVRZEE7VYF5GSNGFSISB4}

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	2026-05-18T00:12:47.008387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

836c8492b1c909fae0bd349a62c9120f144d05db444030a1a4dbcbbab2b283fa

Aliases

arxiv: 1806.07688 · arxiv_version: 1806.07688v1 · doi: 10.48550/arxiv.1806.07688 · pith_short_12: QNWIJEVRZEE7 · pith_short_16: QNWIJEVRZEE7VYF5 · pith_short_8: QNWIJEVR

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/QNWIJEVRZEE7VYF5GSNGFSISB4 \
  | 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: 836c8492b1c909fae0bd349a62c9120f144d05db444030a1a4dbcbbab2b283fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e2fbff9b0c2d5b6d1660a35182743d20c50069734a6404248c6cd5aed524ac7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-06-20T12:13:53Z",
    "title_canon_sha256": "b74955f3d568de2ea7568bd7047d1ed75a1281c5035b724e2a754ddcfc88a9df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.07688",
    "kind": "arxiv",
    "version": 1
  }
}