Pith Number

pith:7KEI5OJL

pith:2016:7KEI5OJLT3LCM3URKUD5ANBQL6

not attested not anchored not stored refs pending

The possible detection of a binary companion to a Type Ibn supernova progenitor

A. Pastorello, J.R. Maund, K. Itagaki, S. Mattila, T. Boles

arxiv:1609.07739 v1 · 2016-09-25 · 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{7KEI5OJLT3LCM3URKUD5ANBQL6}

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	2026-05-18T00:54:19.444802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa888eb92b9ed6266e915507d034305fa8b6f60aaef279721952272aeb211a73

Aliases

arxiv: 1609.07739 · arxiv_version: 1609.07739v1 · doi: 10.48550/arxiv.1609.07739 · pith_short_12: 7KEI5OJLT3LC · pith_short_16: 7KEI5OJLT3LCM3UR · pith_short_8: 7KEI5OJL

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/7KEI5OJLT3LCM3URKUD5ANBQL6 \
  | 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: fa888eb92b9ed6266e915507d034305fa8b6f60aaef279721952272aeb211a73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffd8a5ee70e4e5dec6c84fd4dda08ca8254ee68639f86ec30999a8812aadf3ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-09-25T13:27:53Z",
    "title_canon_sha256": "4fb33f4e578916ca1f456b677956b86095ce4102b53af70555a6557234af5880"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07739",
    "kind": "arxiv",
    "version": 1
  }
}