Pith Number

pith:64JGJLLG

pith:2020:64JGJLLGEDR6DQIDUOQH7UTOYF

not attested not anchored not stored refs pending

Joint Unsupervised Learning of Optical Flow and Egomotion with Bi-Level Optimization

Dylan Campbell, Miaomiao Liu, Richard Hartley, Shihao Jiang, Stephen Gould

arxiv:2002.11826 v1 · 2020-02-26 · 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{64JGJLLGEDR6DQIDUOQH7UTOYF}

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	2026-07-05T00:44:09.397670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f71264ad6620e3e1c103a3a07fd26ec158f2b75c73ac8617362bd5400b37ff6b

Aliases

arxiv: 2002.11826 · arxiv_version: 2002.11826v1 · doi: 10.48550/arxiv.2002.11826 · pith_short_12: 64JGJLLGEDR6 · pith_short_16: 64JGJLLGEDR6DQID · pith_short_8: 64JGJLLG

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/64JGJLLGEDR6DQIDUOQH7UTOYF \
  | 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: f71264ad6620e3e1c103a3a07fd26ec158f2b75c73ac8617362bd5400b37ff6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50d31c37027ed40340d2921cad1d742c732fcc5f4e3db5154ff69ae9389ba71c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2020-02-26T22:28:00Z",
    "title_canon_sha256": "b9f1b3fdb368b3fe3bc254163dd09799b82e6f5160e4465644bb956cdec60938"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.11826",
    "kind": "arxiv",
    "version": 1
  }
}