Pith Number

pith:5GRD6QEV

pith:2013:5GRD6QEVOZH3KVSH767UXJQ7BA

not attested not anchored not stored refs pending

Decomposition of Optical Flow on the Sphere

Clemens Kirisits, Lukas F. Lang, Otmar Scherzer

arxiv:1312.4354 v2 · 2013-12-16 · math.OC · 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{5GRD6QEVOZH3KVSH767UXJQ7BA}

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	2026-05-18T02:57:17.035725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9a23f4095764fb55647ffbf4ba61f0825a4705c9e072ba0085177ab98f81d8c

Aliases

arxiv: 1312.4354 · arxiv_version: 1312.4354v2 · doi: 10.48550/arxiv.1312.4354 · pith_short_12: 5GRD6QEVOZH3 · pith_short_16: 5GRD6QEVOZH3KVSH · pith_short_8: 5GRD6QEV

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/5GRD6QEVOZH3KVSH767UXJQ7BA \
  | 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: e9a23f4095764fb55647ffbf4ba61f0825a4705c9e072ba0085177ab98f81d8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d7d74fb193452947ad3dd64c8595a62e221c0e3fb19c7af2f952da326d57068",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-12-16T13:38:27Z",
    "title_canon_sha256": "1bb8c708dae5a41127ce5457ae8aba67822a6af45e18dc7b5cce9b3e366e9e07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.4354",
    "kind": "arxiv",
    "version": 2
  }
}