Pith Number

pith:FCKWSTE5

pith:2015:FCKWSTE5HADGA6WTWF3VYWKTI5

not attested not anchored not stored refs pending

Room Temperature InP DFB Laser Array Directly Grown on (001) Silicon

Bin Tian, Clement Merckling, Dries Van Thourhout, Joris Van Campenhout, Marianna Pantouvaki, Philippe Absil, Weiming Guo, Zhechao Wang

arxiv:1501.03025 v1 · 2015-01-13 · 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{FCKWSTE5HADGA6WTWF3VYWKTI5}

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	2026-05-18T01:22:41.460326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2895694c9d3806607ad3b1775c5953477173dad01dc6f4ee9947709195232e1d

Aliases

arxiv: 1501.03025 · arxiv_version: 1501.03025v1 · doi: 10.48550/arxiv.1501.03025 · pith_short_12: FCKWSTE5HADG · pith_short_16: FCKWSTE5HADGA6WT · pith_short_8: FCKWSTE5

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/FCKWSTE5HADGA6WTWF3VYWKTI5 \
  | 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: 2895694c9d3806607ad3b1775c5953477173dad01dc6f4ee9947709195232e1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e21d9991f8b4fa6907b819c755a68b8eb435d73328f0f44b49c25d02e0ed4c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-01-13T14:55:58Z",
    "title_canon_sha256": "25004a7a3d33fb5fce6fe51c594a07e02730a4eec2e834d44f3a7f0adc5dc395"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03025",
    "kind": "arxiv",
    "version": 1
  }
}