Pith Number

pith:W6NCLWRV

pith:2013:W6NCLWRV4EAB556X6O7NFQS3MK

not attested not anchored not stored refs pending

A Factorized Variational Technique for Phase Unwrapping in Markov Random Fields

Brendan J. Frey, Kannan Achan, Ralf Koetter

arxiv:1301.2252 v1 · 2013-01-10 · 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{W6NCLWRV4EAB556X6O7NFQS3MK}

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	2026-05-18T03:36:45.882508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b79a25da35e1001ef7d7f3bed2c25b62b61dd486f418eefa9b34e636715ad964

Aliases

arxiv: 1301.2252 · arxiv_version: 1301.2252v1 · doi: 10.48550/arxiv.1301.2252 · pith_short_12: W6NCLWRV4EAB · pith_short_16: W6NCLWRV4EAB556X · pith_short_8: W6NCLWRV

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/W6NCLWRV4EAB556X6O7NFQS3MK \
  | 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: b79a25da35e1001ef7d7f3bed2c25b62b61dd486f418eefa9b34e636715ad964

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6326e9af2f94b8cd24cc47060c2ef92b32170baaddb1e0ff19d0548eabba402",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-01-10T16:22:19Z",
    "title_canon_sha256": "33e5d5ef5096c5ad54673d4554523ed0740b7aa06a358bcbc30cd15969605d5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2252",
    "kind": "arxiv",
    "version": 1
  }
}