Pith Number

pith:HYY4YOEM

pith:2018:HYY4YOEMA2T7LNSQ6PZEXXQCLP

not attested not anchored not stored refs pending

iPTF16abc and the population of Type Ia supernovae: Comparing the photospheric, transitional and nebular phases

A.A.Miller, A. Goobar, C. Fransson, J. Johansson, M. Bulla, R. Lunnan, S. Dhawan, S. Papadogiannakis, S.R. Kulkarni

arxiv:1808.02330 v1 · 2018-08-07 · 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{HYY4YOEMA2T7LNSQ6PZEXXQCLP}

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	2026-05-18T00:08:05.673753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e31cc388c06a7f5b650f3f24bde025bc5c29921dcf8f2bcf460ad66ee48cf49

Aliases

arxiv: 1808.02330 · arxiv_version: 1808.02330v1 · doi: 10.48550/arxiv.1808.02330 · pith_short_12: HYY4YOEMA2T7 · pith_short_16: HYY4YOEMA2T7LNSQ · pith_short_8: HYY4YOEM

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/HYY4YOEMA2T7LNSQ6PZEXXQCLP \
  | 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: 3e31cc388c06a7f5b650f3f24bde025bc5c29921dcf8f2bcf460ad66ee48cf49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f239567ab3485a29d6c3003c7bc5894b6af3a9319fc9601de2008d9ecde24397",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-08-07T12:53:48Z",
    "title_canon_sha256": "6499a7d6b39aadc61405fc9b491f589a2c36c4b184280ccd3c9f8bcde7e7142a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02330",
    "kind": "arxiv",
    "version": 1
  }
}