Pith Number

pith:WRR3RB5Q

pith:2014:WRR3RB5Q3JHQX6FASPTG22HXHF

not attested not anchored not stored refs pending

Studying focal ratio degradation of optical fibers for Subaru Prime Focus Spectrograph

Antonio Cesar de Oliveira, Bruno Castilho, Claudia Mendes de Oliveira, Clemens Darvin Gneiding, Daniel J. Reiley, Flavio Felipe Ribeiro, Graham Murray, James Gunn, Jesulino Bispo dos Santos, Laerte Sodr\'e Junior, Ligia Souza de Oliveira, Marcio Vital de Arruda

arxiv:1408.3066 v1 · 2014-08-13 · 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{WRR3RB5Q3JHQX6FASPTG22HXHF}

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	2026-05-18T02:45:15.148641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b463b887b0da4f0bf8a093e66d68f73966ded636ff5e22f4e5e6a465ab47146b

Aliases

arxiv: 1408.3066 · arxiv_version: 1408.3066v1 · doi: 10.48550/arxiv.1408.3066 · pith_short_12: WRR3RB5Q3JHQ · pith_short_16: WRR3RB5Q3JHQX6FA · pith_short_8: WRR3RB5Q

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/WRR3RB5Q3JHQX6FASPTG22HXHF \
  | 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: b463b887b0da4f0bf8a093e66d68f73966ded636ff5e22f4e5e6a465ab47146b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cb7c147f97eafe6c5323953555ede317c9bbd0d6ee46a8a285905bb57a3c136",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-08-13T17:56:52Z",
    "title_canon_sha256": "f9e950588afea02a99572dc0926078c3bc10b7638e37c1bcc09f4fab9eee7ad9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.3066",
    "kind": "arxiv",
    "version": 1
  }
}