Pith Number

pith:EDL5H4VF

pith:2023:EDL5H4VFE2ALHUIBPKBNPWZD7E

not attested not anchored not stored refs pending

An in-depth exploration of LAMOST Unknown spectra based on density clustering

Ali Luo, Haifeng Yang, Jianghui Cai, Lichan Zhou, Xiaona Yin, Xujun Zhao, Yaling Xun, Yuqing Yang, Zhongrui Bai

arxiv:2303.09836 v1 · 2023-03-17 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EDL5H4VFE2ALHUIBPKBNPWZD7E}

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	2026-07-05T05:52:11.376152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20d7d3f2a52680b3d1017a82d7db23f90421e7f3c8b41b4c7b6e54ec34225e1b

Aliases

arxiv: 2303.09836 · arxiv_version: 2303.09836v1 · doi: 10.48550/arxiv.2303.09836 · pith_short_12: EDL5H4VFE2AL · pith_short_16: EDL5H4VFE2ALHUIB · pith_short_8: EDL5H4VF

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/EDL5H4VFE2ALHUIBPKBNPWZD7E \
  | 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: 20d7d3f2a52680b3d1017a82d7db23f90421e7f3c8b41b4c7b6e54ec34225e1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95571e5da3bc8d71ea0ae9d31b5387481cf8ea8d85ed88bd01c0e348b415a069",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2023-03-17T08:43:22Z",
    "title_canon_sha256": "f646587919aa6b56b42ed8344e06ecf247ec595094d4040442c9e3bf538d7c9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.09836",
    "kind": "arxiv",
    "version": 1
  }
}