Pith Number

pith:BNETKYE7

pith:2017:BNETKYE7P7XW3DNWXG43VC2RUH

not attested not anchored not stored refs pending

Quantitative Classification of Type I Supernovae Using Spectroscopic Features at Maximum Brightness

Avishay Gal-Yam, Fengwu Sun

arxiv:1707.02543 v1 · 2017-07-09 · 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{BNETKYE7P7XW3DNWXG43VC2RUH}

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	2026-05-18T00:40:36.544010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b4935609f7fef6d8db6b9b9ba8b51a1ef0e123211663cfcaeba4eaf2fd63fbd

Aliases

arxiv: 1707.02543 · arxiv_version: 1707.02543v1 · doi: 10.48550/arxiv.1707.02543 · pith_short_12: BNETKYE7P7XW · pith_short_16: BNETKYE7P7XW3DNW · pith_short_8: BNETKYE7

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/BNETKYE7P7XW3DNWXG43VC2RUH \
  | 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: 0b4935609f7fef6d8db6b9b9ba8b51a1ef0e123211663cfcaeba4eaf2fd63fbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d9d095f1aff0bdd7a256989aa9bb4bf16bcd421a66015ba85cbe44739aff0a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-07-09T08:55:54Z",
    "title_canon_sha256": "85c0b75560fbcd6579b3cabd37ff6882a46ba7dcb81b61474cbd18952fb2928f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02543",
    "kind": "arxiv",
    "version": 1
  }
}