Pith Number

pith:DOOUXWDG

pith:2024:DOOUXWDG35ZLO4S4RJSJ7VEVUI

not attested not anchored not stored refs pending

SPT: Spectral Transformer for Red Giant Stars Age and Mass Estimation

Fan Wu, Meng Liu, Mengmeng Zhang, Shanshan Li, Xiaoming Kong, Yude Bu, Zhenping Yi

arxiv:2401.04900 v1 · 2024-01-10 · astro-ph.SR · astro-ph.IM · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DOOUXWDG35ZLO4S4RJSJ7VEVUI}

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	2026-07-05T07:31:59.844895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b9d4bd866df72b7725c8a649fd495a239b58ea11363f3400aba93d5a34ca1a6

Aliases

arxiv: 2401.04900 · arxiv_version: 2401.04900v1 · doi: 10.48550/arxiv.2401.04900 · pith_short_12: DOOUXWDG35ZL · pith_short_16: DOOUXWDG35ZLO4S4 · pith_short_8: DOOUXWDG

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/DOOUXWDG35ZLO4S4RJSJ7VEVUI \
  | 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: 1b9d4bd866df72b7725c8a649fd495a239b58ea11363f3400aba93d5a34ca1a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6c7e0d2f47b2c9dbe292296c98cac485a8d539ae05989ecc784a3e5986cca7c",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2024-01-10T03:03:12Z",
    "title_canon_sha256": "db3e18be3dabcb6f738be83858876187121d91f70adbbe35d4c5ac2ded500893"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2401.04900",
    "kind": "arxiv",
    "version": 1
  }
}