Pith Number

pith:BPHOXJ2C

pith:2021:BPHOXJ2CSIQ2SMUYD6DIYIIBAH

not attested not anchored not stored refs pending

On Development of Efficient Data Acquisition Systems and Parameter Extraction Technique for DFB Lasers

Dao Thanh Hai, Le Anh Ngoc, Nguyen Quoc Cuong, Vu Ngoc Cham

arxiv:2105.06556 v1 · 2021-05-07 · physics.ins-det · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BPHOXJ2CSIQ2SMUYD6DIYIIBAH}

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	2026-07-05T02:40:11.542967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bceeba7429221a932981f868c210101f094c489298d20d735fe0e0e6f46e2f6

Aliases

arxiv: 2105.06556 · arxiv_version: 2105.06556v1 · doi: 10.48550/arxiv.2105.06556 · pith_short_12: BPHOXJ2CSIQ2 · pith_short_16: BPHOXJ2CSIQ2SMUY · pith_short_8: BPHOXJ2C

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/BPHOXJ2CSIQ2SMUYD6DIYIIBAH \
  | 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: 0bceeba7429221a932981f868c210101f094c489298d20d735fe0e0e6f46e2f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd8a1d65de004eb2999e8cf1f53df7afd1d7988cda3a7a09b35b11dc7de93b4a",
    "cross_cats_sorted": [
      "eess.SP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2021-05-07T21:18:00Z",
    "title_canon_sha256": "714e9869753929550eadaceaad09e5c3c1dc2271e6e887c62f410a2b9d99fa07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.06556",
    "kind": "arxiv",
    "version": 1
  }
}