Pith Number

pith:7RA22AF3

pith:2021:7RA22AF37JRPYUPSBGQIKKA2T4

not attested not anchored not stored refs pending

A Cool and Inflated Progenitor Candidate for the Type Ib Supernova 2019yvr at 2.6 Years Before Explosion

Anthony L. Piro, Armin Rest, Cesar Rojas-Bravo, Charles D. Kilpatrick, Christa Gall, David O. Jones, Enrico Ramirez-Ruiz, Georgios Dimitriadis, Jens Hjorth, Katie Auchettl, K. Decker French, Lindsay DeMarchi, Maria R. Drout, Raffaella Margutti, Ryan J. Foley, Wynn V. Jacobson-Galan

arxiv:2101.03206 v1 · 2021-01-08 · 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{7RA22AF37JRPYUPSBGQIKKA2T4}

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	2026-07-05T02:29:40.926108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc41ad00bbfa62fc51f209a085281a9f2ff011c52f5f4fa29af26b3029944841

Aliases

arxiv: 2101.03206 · arxiv_version: 2101.03206v1 · doi: 10.48550/arxiv.2101.03206 · pith_short_12: 7RA22AF37JRP · pith_short_16: 7RA22AF37JRPYUPS · pith_short_8: 7RA22AF3

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/7RA22AF37JRPYUPSBGQIKKA2T4 \
  | 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: fc41ad00bbfa62fc51f209a085281a9f2ff011c52f5f4fa29af26b3029944841

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "324f027114a71b44095abdeec504bcbea171745dd3d30aea69042257af0cdd6d",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-01-08T20:22:10Z",
    "title_canon_sha256": "865a7b62606f0fbe4554888597f347dc95d24b02db433dddb0e670567d4ad977"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.03206",
    "kind": "arxiv",
    "version": 1
  }
}