Pith Number

pith:UMSR7RNG

pith:2019:UMSR7RNGRID5SGOPZMJNBMKNVH

not attested not anchored not stored refs pending

CEP-stable high-energy ytterbium doped fiber amplifier

Florent Guichard, Hamed Merdji, Jean-Francois Hergott, Loic Lavenu, Marc Hanna, Michele Natile, Patrick Georges, Ronic Chiche, Willem Boutu, Xiaowei Chen, Yoann Zaouter

arxiv:1903.12418 v1 · 2019-03-29 · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UMSR7RNGRID5SGOPZMJNBMKNVH}

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	2026-07-05T00:01:46.257415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3251fc5a68a07d919cfcb12d0b14da9f4910af6be0729f4337821ba015c845f

Aliases

arxiv: 1903.12418 · arxiv_version: 1903.12418v1 · doi: 10.48550/arxiv.1903.12418 · pith_short_12: UMSR7RNGRID5 · pith_short_16: UMSR7RNGRID5SGOP · pith_short_8: UMSR7RNG

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/UMSR7RNGRID5SGOPZMJNBMKNVH \
  | 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: a3251fc5a68a07d919cfcb12d0b14da9f4910af6be0729f4337821ba015c845f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3e9febd216d4a60feb17b6e7a16bd0b4c71c25b86a7761d7be3f0567e6288f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2019-03-29T09:48:48Z",
    "title_canon_sha256": "ecfa1c62bdd10a224fd211a7e40ddb732daa58361c91cad00e8f1aff8ceed08c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.12418",
    "kind": "arxiv",
    "version": 1
  }
}