Pith Number

pith:VFCHTYWN

pith:2018:VFCHTYWNJTEUKHEAE5VA555UUO

not attested not anchored not stored refs pending

A new photolithography based technique to mass produce microlens+fibre based integralfield units (IFUs) for 2D spectroscopy

Abhay Kohak, A. N. Ramaprakash, Deepa Modi, Haeun Chung, Sabyasachi Chattopadhyay, Vishal Joshi

arxiv:1807.06562 v1 · 2018-07-17 · 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{VFCHTYWNJTEUKHEAE5VA555UUO}

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	2026-05-18T00:10:32.680268Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a94479e2cd4cc9451c80276a0ef7b4a39087ccc7637b35a0f2327dc35940f06b

Aliases

arxiv: 1807.06562 · arxiv_version: 1807.06562v1 · doi: 10.48550/arxiv.1807.06562 · pith_short_12: VFCHTYWNJTEU · pith_short_16: VFCHTYWNJTEUKHEA · pith_short_8: VFCHTYWN

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/VFCHTYWNJTEUKHEAE5VA555UUO \
  | 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: a94479e2cd4cc9451c80276a0ef7b4a39087ccc7637b35a0f2327dc35940f06b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b8b1018f5917576c07250d0a361f2ff5bcda6923fe46767181d3fca91fcaf2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-17T17:10:50Z",
    "title_canon_sha256": "0e7b6767ac9b454fee5bd968a5cf62c0a44a738b735a7a3cf208a433d96d4f0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.06562",
    "kind": "arxiv",
    "version": 1
  }
}