Pith Number

pith:IYR45R64

pith:2019:IYR45R64TOCYQ7K6P6FD2OAPU7

not attested not anchored not stored refs pending

Refractive index and generalized polarizability

Krzysztof Pachucki, Mariusz Puchalski

arxiv:1902.05725 v3 · 2019-02-15 · physics.class-ph · physics.atom-ph · 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{IYR45R64TOCYQ7K6P6FD2OAPU7}

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	2026-05-17T23:46:47.351327Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4623cec7dc9b85887d5e7f8a3d380fa7c7cf1ca0807520f6871586c9ba1faa73

Aliases

arxiv: 1902.05725 · arxiv_version: 1902.05725v3 · doi: 10.48550/arxiv.1902.05725 · pith_short_12: IYR45R64TOCY · pith_short_16: IYR45R64TOCYQ7K6 · pith_short_8: IYR45R64

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/IYR45R64TOCYQ7K6P6FD2OAPU7 \
  | 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: 4623cec7dc9b85887d5e7f8a3d380fa7c7cf1ca0807520f6871586c9ba1faa73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "715e04b68404111da0c54a550bf1a2ffc49cc9b0ca19047067c8d04dc8d8ed64",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2019-02-15T09:00:43Z",
    "title_canon_sha256": "60c2c60f7463097f6d854811e42bff415bb283facaba70735ecf53172d2c50bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05725",
    "kind": "arxiv",
    "version": 3
  }
}