Pith Number

pith:YACSNTK5

pith:2018:YACSNTK5GKTXNL3RAGHSCWUBLH

not attested not anchored not stored refs pending

Artificial Neural Network for Constructing Type Ia Supernovae Spectrum Evolution Model

Chao-Jun Feng, Qiao-Bin Cheng, Xiang-Hua Zhai, Xin-zhou Li

arxiv:1801.01723 v2 · 2018-01-05 · astro-ph.CO · 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{YACSNTK5GKTXNL3RAGHSCWUBLH}

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	2026-05-18T00:12:18.619310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c00526cd5d32a776af71018f215a8159eb7c531cf2346821caf32de331a4dd32

Aliases

arxiv: 1801.01723 · arxiv_version: 1801.01723v2 · doi: 10.48550/arxiv.1801.01723 · pith_short_12: YACSNTK5GKTX · pith_short_16: YACSNTK5GKTXNL3R · pith_short_8: YACSNTK5

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/YACSNTK5GKTXNL3RAGHSCWUBLH \
  | 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: c00526cd5d32a776af71018f215a8159eb7c531cf2346821caf32de331a4dd32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e5d5c560f147894313e21fd2de7f5ae554724a3384739f264e7ef89656f0d7b",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-01-05T11:39:59Z",
    "title_canon_sha256": "f7c487e949edce3ae88c84f2259f6fb95b8b72698bf5492d74758d14158de578"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.01723",
    "kind": "arxiv",
    "version": 2
  }
}