Pith Number

pith:VZ63KYTU

pith:2019:VZ63KYTUTPFEC4W6AX3GRUSYY6

not attested not anchored not stored refs pending

Artificial Intelligence Assisted Inversion (AIAI) of Synthetic Type Ia Supernova Spectra

Lei Hu, Lifan Wang, Xingzhuo Chen

arxiv:1911.05209 v2 · 2019-11-13 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VZ63KYTUTPFEC4W6AX3GRUSYY6}

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	2026-07-05T01:33:57.525694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae7db562749bca4172de05f668d258c79d87b5f98c4d7b54c0f758ab34835c35

Aliases

arxiv: 1911.05209 · arxiv_version: 1911.05209v2 · doi: 10.48550/arxiv.1911.05209 · pith_short_12: VZ63KYTUTPFE · pith_short_16: VZ63KYTUTPFEC4W6 · pith_short_8: VZ63KYTU

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/VZ63KYTUTPFEC4W6AX3GRUSYY6 \
  | 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: ae7db562749bca4172de05f668d258c79d87b5f98c4d7b54c0f758ab34835c35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "896b0124f80a5374d4f2070507199b1145e4452b222b41cd97c269408d49afdc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-11-13T00:07:23Z",
    "title_canon_sha256": "7fa56ec72b8fee8f14628e26571b8cf9b198a2c2906ad326646efa180ed9ce82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.05209",
    "kind": "arxiv",
    "version": 2
  }
}