Pith Number

pith:W2W5UAXI

pith:2018:W2W5UAXI5A6QLKVCSJ7J4SNEIC

not attested not anchored not stored refs pending

Polarization Modeling and Predictions for DKIST Part 3: Focal Ratio and Thermal Dependencies of Spectral Polarization Fringes and Optic Retardance

David M. Harrington, Stacey R. Sueoka

arxiv:1803.08987 v1 · 2018-03-23 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W2W5UAXI5A6QLKVCSJ7J4SNEIC}

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	2026-05-18T00:20:13.000533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6adda02e8e83d05aaa2927e9e49a44097870b0342f4717b79d3554b83e54c66

Aliases

arxiv: 1803.08987 · arxiv_version: 1803.08987v1 · doi: 10.48550/arxiv.1803.08987 · pith_short_12: W2W5UAXI5A6Q · pith_short_16: W2W5UAXI5A6QLKVC · pith_short_8: W2W5UAXI

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/W2W5UAXI5A6QLKVCSJ7J4SNEIC \
  | 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: b6adda02e8e83d05aaa2927e9e49a44097870b0342f4717b79d3554b83e54c66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b42f30ad02989684b366735db00f80d0a97c951aafbba02399c8c7d56598672a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-03-23T21:35:54Z",
    "title_canon_sha256": "d987b562e2f44f2940bcafbf37b19e567f3fb7306e99e541b8d3a88749d50b92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08987",
    "kind": "arxiv",
    "version": 1
  }
}