Pith Number

pith:ONBLTFBA

pith:2022:ONBLTFBAQTCS42WJCPYGNIKSVH

not attested not anchored not stored refs pending

SN 2021foa, a transitional event between a Type IIn (SN 2009ip-like) and a Type Ibn supernova

A. Pastorello, A. Reguitti, C.P. Gutierrez, D. Fugazza, E. Kankare, G. Pignata, G. Valerin, H. Kuncarayakti, I. Salmaso, L. Tomasella, M.D. Stritzinger, M. Fraser, N. Elias-Rosa, P.A. Mazzali, P. Lundqvist, R. Kotak, S.J. Brennan, S. Moran, Y.-Z. Cai

arxiv:2206.00625 v1 · 2022-06-01 · 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{ONBLTFBAQTCS42WJCPYGNIKSVH}

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	2026-07-05T04:35:50.549435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7342b9942084c52e6ac913f066a152a9f980744f6f311d68a1ea589887b623f5

Aliases

arxiv: 2206.00625 · arxiv_version: 2206.00625v1 · doi: 10.48550/arxiv.2206.00625 · pith_short_12: ONBLTFBAQTCS · pith_short_16: ONBLTFBAQTCS42WJ · pith_short_8: ONBLTFBA

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/ONBLTFBAQTCS42WJCPYGNIKSVH \
  | 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: 7342b9942084c52e6ac913f066a152a9f980744f6f311d68a1ea589887b623f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27f06a7ad623d5b13a093ded8f97a995ed76260b0234efd07f9718a408bb7248",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-06-01T16:54:40Z",
    "title_canon_sha256": "81048f0e0c44d1d0fbdd7cfc89046aac2fc9925beb03cd23819eac135d28d33d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.00625",
    "kind": "arxiv",
    "version": 1
  }
}