Pith Number

pith:EO2QCKFL

pith:2018:EO2QCKFLYTACGDG2Y6RSVX26I3

not attested not anchored not stored refs pending

Red vs Blue: Early observations of thermonuclear supernovae reveal two distinct populations?

Anthony L. Piro (Carnegie Obs), Benjamin J. Shappee (IfA), Carlos Contreras (LCO), Christopher Ashall (FSU), C. R. Burns (Carnegie Obs), E. Baron (Oklahoma), Maximilian D. Stritzinger (Aarhus), Michael A. Tucker (IfA), M. M. Phillips (LCO), Nidia Morrell (LCO), Peter Hoeflich (FSU), Simon Holmbo (Aarhus), Thomas W.-S. Holoien (Carnegie Obs)

arxiv:1807.07576 v2 · 2018-07-19 · 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{EO2QCKFLYTACGDG2Y6RSVX26I3}

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	2026-05-18T00:05:30.326237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23b50128abc4c0230cdac7a32adf5e46de258fd4bfccbefa501bec01b6ca5c4d

Aliases

arxiv: 1807.07576 · arxiv_version: 1807.07576v2 · doi: 10.48550/arxiv.1807.07576 · pith_short_12: EO2QCKFLYTAC · pith_short_16: EO2QCKFLYTACGDG2 · pith_short_8: EO2QCKFL

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/EO2QCKFLYTACGDG2Y6RSVX26I3 \
  | 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: 23b50128abc4c0230cdac7a32adf5e46de258fd4bfccbefa501bec01b6ca5c4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "159d59d3cc2f6f7655b5fab2ac665c90b9bcd30c4cbf8851785e24302e3e20ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-07-19T18:00:02Z",
    "title_canon_sha256": "fff500b7c4b61e49b2c22754992a849eee8a37a3d1be241b6031bc8bed914ea7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07576",
    "kind": "arxiv",
    "version": 2
  }
}