Pith Number

pith:HTBAFJKO

pith:2019:HTBAFJKONHHKL67GR3GLB7LDWT

not attested not anchored not stored refs pending

The metallicity effect on line-depth ratios in APOGEE $H$-band spectra

Kei Fukue, Mingjie Jian, Noriyuki Matsunaga

arxiv:1901.07141 v1 · 2019-01-22 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HTBAFJKONHHKL67GR3GLB7LDWT}

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	2026-05-17T23:52:21.558239Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cc202a54e69cea5fbe68eccb0fd63b4d7bbc71a656ab9340bc0df812d47aa92

Aliases

arxiv: 1901.07141 · arxiv_version: 1901.07141v1 · doi: 10.48550/arxiv.1901.07141 · pith_short_12: HTBAFJKONHHK · pith_short_16: HTBAFJKONHHKL67G · pith_short_8: HTBAFJKO

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/HTBAFJKONHHKL67GR3GLB7LDWT \
  | 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: 3cc202a54e69cea5fbe68eccb0fd63b4d7bbc71a656ab9340bc0df812d47aa92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fed51e8c6fa0ddc602c3c7b72aafdca4253214dcc961c5e7ef16635a3e0122a0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-01-22T01:34:41Z",
    "title_canon_sha256": "a7633113673a45b347a386c4f339b7e74ec1b02780c8a37bb20a54513e05bd20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.07141",
    "kind": "arxiv",
    "version": 1
  }
}