Pith Number

pith:UHQ2K4YG

pith:2017:UHQ2K4YGDV6M2G767QZCFYMPY6

not attested not anchored not stored refs pending

Diode-pumped mode-locked femtosecond 2-um Tm:CaYAlO4 laser

Guoqiang Xie, Jun Xu, Liejia Qian, Lingchen Kong, Peng Yuan, Xiaodong Xu, Zhipeng Qin

arxiv:1707.03818 v1 · 2017-07-12 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UHQ2K4YGDV6M2G767QZCFYMPY6}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:40:23.469962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1e1a573061d7ccd1bfefc3222e18fc7ba4503fed18a59a8f1c78e73a75f7061

Aliases

arxiv: 1707.03818 · arxiv_version: 1707.03818v1 · doi: 10.48550/arxiv.1707.03818 · pith_short_12: UHQ2K4YGDV6M · pith_short_16: UHQ2K4YGDV6M2G76 · pith_short_8: UHQ2K4YG

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/UHQ2K4YGDV6M2G767QZCFYMPY6 \
  | 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: a1e1a573061d7ccd1bfefc3222e18fc7ba4503fed18a59a8f1c78e73a75f7061

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5026f2d7aa1578e8c646753096416991e961d5dffa3e4ac5a2f506ef4158cfa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-07-12T07:09:49Z",
    "title_canon_sha256": "385c69c26621c0ebce2028fae2bc234458506c90c944d1c466c3456702912b2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.03818",
    "kind": "arxiv",
    "version": 1
  }
}