Pith Number

pith:BPEM24B5

pith:2012:BPEM24B5BC5PPKKGTRGFR5LCSI

not attested not anchored not stored refs pending

Design of an efficient mid-wave IR fiber optic light source

A. Barh, B. P. Pal, R. K. Varshney, S. Ghosh

arxiv:1208.3316 v1 · 2012-08-16 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BPEM24B5BC5PPKKGTRGFR5LCSI}

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	2026-05-18T03:48:36.201176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bc8cd703d08baf7a9469c4c58f5629212c0df3dad7eb76480070ca4a5872d32

Aliases

arxiv: 1208.3316 · arxiv_version: 1208.3316v1 · doi: 10.48550/arxiv.1208.3316 · pith_short_12: BPEM24B5BC5P · pith_short_16: BPEM24B5BC5PPKKG · pith_short_8: BPEM24B5

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/BPEM24B5BC5PPKKGTRGFR5LCSI \
  | 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: 0bc8cd703d08baf7a9469c4c58f5629212c0df3dad7eb76480070ca4a5872d32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f35aed0055a84418973f3c4c0cf524ecf8026fe5765fc7c6f35ccabcc33da928",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-08-16T08:46:43Z",
    "title_canon_sha256": "0b008f1709bc9f3e732be36ce9c0f49e66d2a00d9746276bbde897b671ff18d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3316",
    "kind": "arxiv",
    "version": 1
  }
}