Pith Number

pith:CM7QHO4X

pith:2017:CM7QHO4XJKGMNEE2KY3CPBWBZH

not attested not anchored not stored refs pending

Extended depth-range profilometry using the phase-difference and phase-sum of two close-sensitivity projected fringes

Guillermo Garnica, Manuel Servin, Moises Padilla

arxiv:1704.04662 v2 · 2017-04-15 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CM7QHO4XJKGMNEE2KY3CPBWBZH}

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	2026-05-18T00:19:35.794326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

133f03bb974a8cc6909a56362786c1c9d1be7d717e871164cc097cbd920b0163

Aliases

arxiv: 1704.04662 · arxiv_version: 1704.04662v2 · doi: 10.48550/arxiv.1704.04662 · pith_short_12: CM7QHO4XJKGM · pith_short_16: CM7QHO4XJKGMNEE2 · pith_short_8: CM7QHO4X

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/CM7QHO4XJKGMNEE2KY3CPBWBZH \
  | 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: 133f03bb974a8cc6909a56362786c1c9d1be7d717e871164cc097cbd920b0163

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d93895a6eb71cb8b9d9ddfe3e197cc324bb999c6aa69c2cddd3afcb420d202f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-04-15T17:03:34Z",
    "title_canon_sha256": "13a0343fa24fd0e8f25f20e391753e749a326e2768faa8e77a1bbe5474deea44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.04662",
    "kind": "arxiv",
    "version": 2
  }
}