Pith Number

pith:I7P7UJTF

pith:2021:I7P7UJTF22USGO7HPWQE4JTVIX

not attested not anchored not stored refs pending

Active learning with MaskAL reduces annotation effort for training Mask R-CNN

Boubacar Diallo, Eldert J. van Henten, Frits K. van Evert, Gert Kootstra, Hakim Elchaoui Elghor, Pieter M. Blok

arxiv:2112.06586 v3 · 2021-12-13 · 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{I7P7UJTF22USGO7HPWQE4JTVIX}

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	2026-07-05T04:40:24.926914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47dffa2665d6a9233be77da04e267545d72dc6e3e6158a1e630132e8e1de63f7

Aliases

arxiv: 2112.06586 · arxiv_version: 2112.06586v3 · doi: 10.48550/arxiv.2112.06586 · pith_short_12: I7P7UJTF22US · pith_short_16: I7P7UJTF22USGO7H · pith_short_8: I7P7UJTF

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/I7P7UJTF22USGO7HPWQE4JTVIX \
  | 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: 47dffa2665d6a9233be77da04e267545d72dc6e3e6158a1e630132e8e1de63f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cdc784c8df0a2a1d4ef10d9208ad22e03a40e7e7b38c7438c313a7326f0ceef",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-12-13T12:08:27Z",
    "title_canon_sha256": "4acc125b5c87e97230225128ae0d2d0fe419f492901703e57ef695a6eea5df7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.06586",
    "kind": "arxiv",
    "version": 3
  }
}