Pith Number

pith:3Q2L5WT7

pith:2018:3Q2L5WT73SMYPNJO6CZMAUOZ2W

not attested not anchored not stored refs pending

Fast Piecewise-Affine Motion Estimation Without Segmentation

Andreas Weinmann, Denis Fortun, Dennis Rickert, Martin Storath, Michael Unser

arxiv:1802.01872 v1 · 2018-02-06 · 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{3Q2L5WT73SMYPNJO6CZMAUOZ2W}

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	2026-05-18T00:24:21.049099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc34beda7fdc9987b52ef0b2c051d9d58d294d701bf241c8cefd82a8e3ab31d4

Aliases

arxiv: 1802.01872 · arxiv_version: 1802.01872v1 · doi: 10.48550/arxiv.1802.01872 · pith_short_12: 3Q2L5WT73SMY · pith_short_16: 3Q2L5WT73SMYPNJO · pith_short_8: 3Q2L5WT7

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/3Q2L5WT73SMYPNJO6CZMAUOZ2W \
  | 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: dc34beda7fdc9987b52ef0b2c051d9d58d294d701bf241c8cefd82a8e3ab31d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dab16206751e8d169f1571f876b378ccee3785cd4f56148f596b0328322405c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-02-06T10:15:30Z",
    "title_canon_sha256": "db416cb6245dca25500a49c93ab92381dfefaf42ca630daa07ec37611bb69c26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.01872",
    "kind": "arxiv",
    "version": 1
  }
}