Pith Number

pith:FQ5SJSLW

pith:2012:FQ5SJSLWUA5QA37SYU35RK5JC4

not attested not anchored not stored refs pending

Impact of surface-polish on the angular and wavelength dependence of fiber focal ratio degradation

Arthur D. Eigenbrot, Corey M. Wood, Matthew A. Bershady

arxiv:1208.0829 v1 · 2012-08-03 · 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{FQ5SJSLWUA5QA37SYU35RK5JC4}

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	2026-05-18T01:55:23.170803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c3b24c976a03b006ff2c537d8aba9173d987d19cfa966543f601c33e166b9af

Aliases

arxiv: 1208.0829 · arxiv_version: 1208.0829v1 · doi: 10.48550/arxiv.1208.0829 · pith_short_12: FQ5SJSLWUA5Q · pith_short_16: FQ5SJSLWUA5QA37S · pith_short_8: FQ5SJSLW

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/FQ5SJSLWUA5QA37SYU35RK5JC4 \
  | 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: 2c3b24c976a03b006ff2c537d8aba9173d987d19cfa966543f601c33e166b9af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "951d698464958f0e693939e3eb139df5cc906d2640513526168f84be26d5753f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-08-03T20:00:03Z",
    "title_canon_sha256": "50fd5ec0f4dd5591c3002893dd0b18b67794c4c1585b67840c9127b00afd6476"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0829",
    "kind": "arxiv",
    "version": 1
  }
}