Pith Number

pith:MVRYNE7I

pith:2022:MVRYNE7IUYTJ2FY7CAC67OZASB

not attested not anchored not stored refs pending

The disappearances of six supernova progenitors

Alexei V. Filippenko, Asia de Graw, Nathan Smith, Ori D. Fox, Patrick L. Kelly, Raphael Baer-Way, Schuyler D. Van Dyk, Sergiy S. Vasylyev, Thomas de Jaeger, Thomas G. Brink, Weikang Zheng

arxiv:2212.00179 v1 · 2022-11-30 · 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{MVRYNE7IUYTJ2FY7CAC67OZASB}

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	2026-07-05T05:25:10.578025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65638693e8a6269d171f1005efbb209041c73c35d72e865e0f5cf8d6c524f251

Aliases

arxiv: 2212.00179 · arxiv_version: 2212.00179v1 · doi: 10.48550/arxiv.2212.00179 · pith_short_12: MVRYNE7IUYTJ · pith_short_16: MVRYNE7IUYTJ2FY7 · pith_short_8: MVRYNE7I

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/MVRYNE7IUYTJ2FY7CAC67OZASB \
  | 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: 65638693e8a6269d171f1005efbb209041c73c35d72e865e0f5cf8d6c524f251

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51e3c021a4bdd6a155513ee58fd7b6212a1eca07b915e060ca39651e4b23638f",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-11-30T23:48:07Z",
    "title_canon_sha256": "ef1d1f4b4c28c6d30b1f3a5eee59f84a51f95c5973b13a5af775f1fc43e7868d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.00179",
    "kind": "arxiv",
    "version": 1
  }
}