Pith Number

pith:Y5FBDEIR

pith:2016:Y5FBDEIR7U2JXUQOYPUPJF4DLO

not attested not anchored not stored refs pending

Back to Basics: Unsupervised Learning of Optical Flow via Brightness Constancy and Motion Smoothness

Adam W. Harley, Jason J. Yu, Konstantinos G. Derpanis

arxiv:1608.05842 v1 · 2016-08-20 · 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{Y5FBDEIR7U2JXUQOYPUPJF4DLO}

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	2026-05-18T01:08:23.032400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c74a119111fd349bd20ec3e8f497835bad677a68cfa67a1ddfe49d24e4014d98

Aliases

arxiv: 1608.05842 · arxiv_version: 1608.05842v1 · doi: 10.48550/arxiv.1608.05842 · pith_short_12: Y5FBDEIR7U2J · pith_short_16: Y5FBDEIR7U2JXUQO · pith_short_8: Y5FBDEIR

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/Y5FBDEIR7U2JXUQOYPUPJF4DLO \
  | 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: c74a119111fd349bd20ec3e8f497835bad677a68cfa67a1ddfe49d24e4014d98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8acd8120bf55aa1942e4a4a70f5f5c4ab8961a1cdec90ddfc0dde4c296cd723",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-08-20T15:25:31Z",
    "title_canon_sha256": "d17deb6f209dadf1120b10c2dcb5b4b25661033f39999904c07d4c52e235badc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.05842",
    "kind": "arxiv",
    "version": 1
  }
}