Pith Number

pith:T7QMLBUG

pith:2019:T7QMLBUGWLSKBQAUM634Z6IXKY

not attested not anchored not stored refs pending

Constraining massive star activities in the final years through properties of supernovae and their progenitors

Keiichi Maeda, Ryoma Ouchi

arxiv:1904.07878 v1 · 2019-04-16 · 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{T7QMLBUGWLSKBQAUM634Z6IXKY}

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	2026-05-17T23:44:11.331755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fe0c58686b2e4a0c01467b7ccf9175623c9d796ed0d63a30a9fbaf79a66f837

Aliases

arxiv: 1904.07878 · arxiv_version: 1904.07878v1 · doi: 10.48550/arxiv.1904.07878 · pith_short_12: T7QMLBUGWLSK · pith_short_16: T7QMLBUGWLSKBQAU · pith_short_8: T7QMLBUG

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/T7QMLBUGWLSKBQAUM634Z6IXKY \
  | 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: 9fe0c58686b2e4a0c01467b7ccf9175623c9d796ed0d63a30a9fbaf79a66f837

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c252216a5014da259ee70118e171c10d4dc66ee0b96bc15b9fe81b95b16e36b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-04-16T18:00:04Z",
    "title_canon_sha256": "2587c0094e140d97bb6c9dd5f1dd7fde03745a7ace856f62e8b1795be0b5070a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07878",
    "kind": "arxiv",
    "version": 1
  }
}