Pith Number

pith:JAMSQ2XV

pith:2018:JAMSQ2XV6O5YLESHTJ4D66YEQN

not attested not anchored not stored refs pending

Tutorial: Maximum likelihood estimation in the context of an optical measurement

Anthony Vella

arxiv:1806.04503 v3 · 2018-06-08 · physics.data-an · physics.optics · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JAMSQ2XV6O5YLESHTJ4D66YEQN}

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	2026-05-17T23:59:32.559268Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4819286af5f3bb8592479a783f7b04837488f244e5c2d4ee6d89df1529e3f445

Aliases

arxiv: 1806.04503 · arxiv_version: 1806.04503v3 · doi: 10.48550/arxiv.1806.04503 · pith_short_12: JAMSQ2XV6O5Y · pith_short_16: JAMSQ2XV6O5YLESH · pith_short_8: JAMSQ2XV

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/JAMSQ2XV6O5YLESHTJ4D66YEQN \
  | 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: 4819286af5f3bb8592479a783f7b04837488f244e5c2d4ee6d89df1529e3f445

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70a8adeddf8d59d0472968770cdb62df5e7823b3d7c46419a3882379e8484dbe",
    "cross_cats_sorted": [
      "physics.optics",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2018-06-08T06:36:34Z",
    "title_canon_sha256": "ac20384a2d3a91e1674eb3667af1b736e2e29e706fb0ff0f4ba360852dd721d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.04503",
    "kind": "arxiv",
    "version": 3
  }
}