Pith Number

pith:66KUEXDU

pith:2018:66KUEXDU4NL6RTH6EFZ4A7IGMI

not attested not anchored not stored refs pending

A simple analysis of Type I superluminous supernova peak spectra: composition, expansion velocities, and dynamics

Avishay Gal-Yam

arxiv:1806.08224 v2 · 2018-06-19 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{66KUEXDU4NL6RTH6EFZ4A7IGMI}

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	2026-07-05T00:02:53.668257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f795425c74e357e8ccfe2173c07d06623a9c0b901bda9bdc90452f9feccc6154

Aliases

arxiv: 1806.08224 · arxiv_version: 1806.08224v2 · doi: 10.48550/arxiv.1806.08224 · pith_short_12: 66KUEXDU4NL6 · pith_short_16: 66KUEXDU4NL6RTH6 · pith_short_8: 66KUEXDU

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/66KUEXDU4NL6RTH6EFZ4A7IGMI \
  | 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: f795425c74e357e8ccfe2173c07d06623a9c0b901bda9bdc90452f9feccc6154

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dc9dc329b2571bc0dc7a7a1c25a85aa1fd255f70adba7446a576a0207a4dc82",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-06-19T19:59:32Z",
    "title_canon_sha256": "08e90ac7363d0e379e691806be829f2d8b294b8348335914fc4b49e210bf69cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.08224",
    "kind": "arxiv",
    "version": 2
  }
}