Pith Number

pith:PUU27KEJ

pith:2021:PUU27KEJKZDUXNSENVJA3IYVC5

not attested not anchored not stored refs pending

Sign Segmentation with Changepoint-Modulated Pseudo-Labelling

G\"ul Varol, Katrin Renz, Neil Fox, Nicolaj C. Stache, Samuel Albanie

arxiv:2104.13817 v1 · 2021-04-28 · 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{PUU27KEJKZDUXNSENVJA3IYVC5}

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	2026-07-05T02:36:04.539008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d29afa88956474bb6446d520da315177c0e825ecc8cb6e9e8459ddf71e1f241

Aliases

arxiv: 2104.13817 · arxiv_version: 2104.13817v1 · doi: 10.48550/arxiv.2104.13817 · pith_short_12: PUU27KEJKZDU · pith_short_16: PUU27KEJKZDUXNSE · pith_short_8: PUU27KEJ

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/PUU27KEJKZDUXNSENVJA3IYVC5 \
  | 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: 7d29afa88956474bb6446d520da315177c0e825ecc8cb6e9e8459ddf71e1f241

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa54b507666370860a7e29abf484ad6cf3a6b773282f2826f78d63a888d6fab8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-04-28T15:05:19Z",
    "title_canon_sha256": "d9b49cc3ff0f009cef2a3f83318ab39efab6bbad7eb2d20518d4b8028c97b4cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.13817",
    "kind": "arxiv",
    "version": 1
  }
}