Pith Number

pith:654PUE67

pith:2014:654PUE67FVZUN5NMXJTZI4UNHB

not attested not anchored not stored refs pending

Optical Design of the SuMIRe PFS Spectrograph

James Gunn, Robert Barkhouser, Sandrine Pascal, Sebastien Vives

arxiv:1408.3911 v1 · 2014-08-18 · 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{654PUE67FVZUN5NMXJTZI4UNHB}

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	2026-05-18T01:42:18.112472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f778fa13df2d7346f5acba6794728d385c05a91a45f596f1e2c19cc8b922dc43

Aliases

arxiv: 1408.3911 · arxiv_version: 1408.3911v1 · doi: 10.48550/arxiv.1408.3911 · pith_short_12: 654PUE67FVZU · pith_short_16: 654PUE67FVZUN5NM · pith_short_8: 654PUE67

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/654PUE67FVZUN5NMXJTZI4UNHB \
  | 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: f778fa13df2d7346f5acba6794728d385c05a91a45f596f1e2c19cc8b922dc43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e944f66dd5c25bef22b16b09d786af87f7304644b533c35baee16656b1656040",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-08-18T07:22:43Z",
    "title_canon_sha256": "6072ec827b93b3b515aca2d9211c2dad03cab32bfb6692a9f41e39c619b348de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.3911",
    "kind": "arxiv",
    "version": 1
  }
}