Pith Number

pith:J4GSKB7M

pith:2019:J4GSKB7MRK35G2QC3HK22OVSYG

not attested not anchored not stored refs pending

DEEM, a versatile platform of FRD measurement for highly multiplexed fibre systems in astronomy

A-Li Luo, Gang Wang, Jian Li, Qiong Zhang, Qi Yan, Shuqing Wang, Weimin Sun, Yunxiang Yan, Zhenyu Ma

arxiv:1912.11305 v1 · 2019-12-24 · astro-ph.IM · 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{J4GSKB7MRK35G2QC3HK22OVSYG}

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	2026-07-05T00:28:18.990618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f0d2507ec8ab7d36a02d9d5ad3ab2c1b85a08ef7143d14d14ec334b51543d0f

Aliases

arxiv: 1912.11305 · arxiv_version: 1912.11305v1 · doi: 10.48550/arxiv.1912.11305 · pith_short_12: J4GSKB7MRK35 · pith_short_16: J4GSKB7MRK35G2QC · pith_short_8: J4GSKB7M

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/J4GSKB7MRK35G2QC3HK22OVSYG \
  | 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: 4f0d2507ec8ab7d36a02d9d5ad3ab2c1b85a08ef7143d14d14ec334b51543d0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bf561b5019c0036b3e31017f148eced45e8fe752393caad68125ed4bf34a3b8",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-12-24T11:53:49Z",
    "title_canon_sha256": "b4033e61004ba01daa8c6cbf7568173075807b9898f7512f59c319aad331441a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.11305",
    "kind": "arxiv",
    "version": 1
  }
}