Pith Number

pith:SPRXLF7K

pith:2019:SPRXLF7KSRMMOX2SSJQXJHVVQF

not attested not anchored not stored refs pending

Panoptic Feature Pyramid Networks

Alexander Kirillov, Kaiming He, Piotr Doll\'ar, Ross Girshick

arxiv:1901.02446 v2 · 2019-01-08 · 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{SPRXLF7KSRMMOX2SSJQXJHVVQF}

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.

Cited by

1 paper in Pith

The Indirect Convolution Algorithm

Receipt and verification

First computed	2026-05-17T23:48:50.274165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93e37597ea9458c75f529261749eb581511dcf1db43a9ba5bb3f83b67ea09f34

Aliases

arxiv: 1901.02446 · arxiv_version: 1901.02446v2 · doi: 10.48550/arxiv.1901.02446 · pith_short_12: SPRXLF7KSRMM · pith_short_16: SPRXLF7KSRMMOX2S · pith_short_8: SPRXLF7K

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/SPRXLF7KSRMMOX2SSJQXJHVVQF \
  | 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: 93e37597ea9458c75f529261749eb581511dcf1db43a9ba5bb3f83b67ea09f34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b620007fd58d7879d1e25a0db45d676f89cb20c8172cafe892b936cc92501fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-01-08T18:55:31Z",
    "title_canon_sha256": "dce946f3cef13b6392e99f569ee024eef62cf2300e108ddfe108b7a7377dac2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02446",
    "kind": "arxiv",
    "version": 2
  }
}