Pith Number

pith:W6E472CC

pith:2014:W6E472CCB76J6NAA3W4VRNH3MW

not attested not anchored not stored refs pending

Analysis of graded-index optical fibers by the spectral parameter power series method

Raul Castillo Perez, Sergii M. Torba, Vladislav V. Kravchenko

arxiv:1408.4147 v1 · 2014-08-18 · physics.optics · math.CA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W6E472CCB76J6NAA3W4VRNH3MW}

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	2026-05-18T02:29:23.385422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b789cfe8420ffc9f3400ddb958b4fb65ab225fa33bee6ced451ee914cba4f368

Aliases

arxiv: 1408.4147 · arxiv_version: 1408.4147v1 · doi: 10.48550/arxiv.1408.4147 · pith_short_12: W6E472CCB76J · pith_short_16: W6E472CCB76J6NAA · pith_short_8: W6E472CC

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/W6E472CCB76J6NAA3W4VRNH3MW \
  | 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: b789cfe8420ffc9f3400ddb958b4fb65ab225fa33bee6ced451ee914cba4f368

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05bfc201b38036d9bf6201c1f1dbe9c8bdf1fa2ee8b949bff8e2a7c1af3350e9",
    "cross_cats_sorted": [
      "math.CA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-08-18T20:19:52Z",
    "title_canon_sha256": "42b52f5e408219bcdfda1c615f706cf34239d72b4388e2c4de809bd3114a266c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4147",
    "kind": "arxiv",
    "version": 1
  }
}