Pith Number

pith:N7RA6VJZ

pith:2019:N7RA6VJZFKK56A2ID3XJO4ZWXK

not attested not anchored not stored refs pending

Optimal birefringence distributions for star test polarimetry

Anthony Vella, Miguel A. Alonso

arxiv:1908.02142 v1 · 2019-08-03 · astro-ph.IM · 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{N7RA6VJZFKK56A2ID3XJO4ZWXK}

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	2026-07-05T00:31:54.897364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fe20f55392a95df03481eee977336bab1d106d7aa522d96f8019593b8ef4f32

Aliases

arxiv: 1908.02142 · arxiv_version: 1908.02142v1 · doi: 10.48550/arxiv.1908.02142 · pith_short_12: N7RA6VJZFKK5 · pith_short_16: N7RA6VJZFKK56A2I · pith_short_8: N7RA6VJZ

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/N7RA6VJZFKK56A2ID3XJO4ZWXK \
  | 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: 6fe20f55392a95df03481eee977336bab1d106d7aa522d96f8019593b8ef4f32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "712eaa6b9e5984172ed79e62c84cd51f647c926ceab02ff280eacea3672106c1",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-08-03T01:47:19Z",
    "title_canon_sha256": "4989d390f5a6ed36d144c4dd37ed2260a23b593859a79133f864a88100392da1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02142",
    "kind": "arxiv",
    "version": 1
  }
}