Pith Number

pith:76CEL2B2

pith:2019:76CEL2B2Z42IBZJWAZKLDYBSPF

not attested not anchored not stored refs pending

Large depth-of-field tracking of colloidal spheres in holographic microscopy by modeling the objective lens

Brian Leahy, Caroline Martin, Ronald Alexander, Solomon Barkley, Vinothan Manoharan

arxiv:1910.14493 v1 · 2019-10-31 · 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{76CEL2B2Z42IBZJWAZKLDYBSPF}

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	2026-07-05T00:41:45.289452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff8445e83acf3480e5360654b1e03279656af76a55f46750d98cc9c4bd1e1bc0

Aliases

arxiv: 1910.14493 · arxiv_version: 1910.14493v1 · doi: 10.48550/arxiv.1910.14493 · pith_short_12: 76CEL2B2Z42I · pith_short_16: 76CEL2B2Z42IBZJW · pith_short_8: 76CEL2B2

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/76CEL2B2Z42IBZJWAZKLDYBSPF \
  | 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: ff8445e83acf3480e5360654b1e03279656af76a55f46750d98cc9c4bd1e1bc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90a74da2ffc56e41c9e052a754a80e42dbcffc20e8a6232b416d69a9f8941929",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-10-31T14:30:49Z",
    "title_canon_sha256": "cd2c3eca9208222d58a23e817281c67c0a1427275a5ca982d333cfd3cbcdc27f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.14493",
    "kind": "arxiv",
    "version": 1
  }
}