Pith Number

pith:RIVUFKT4

pith:2011:RIVUFKT4UNRX377YVOY7FX5YI7

not attested not anchored not stored refs pending

Optical studies of SN 2009jf: A type Ib supernova with an extremely slow decline and aspherical signature

D. K. Sahu, G. C. Anupama, K. Nomoto, U.K. Gurugubelli

arxiv:1101.2068 v1 · 2011-01-11 · 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{RIVUFKT4UNRX377YVOY7FX5YI7}

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	2026-05-18T02:03:43.059959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a2b42aa7ca3637dfff8abb1f2dfb847d3b2898fda0676216daef8cefd9b748d

Aliases

arxiv: 1101.2068 · arxiv_version: 1101.2068v1 · doi: 10.48550/arxiv.1101.2068 · pith_short_12: RIVUFKT4UNRX · pith_short_16: RIVUFKT4UNRX377Y · pith_short_8: RIVUFKT4

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/RIVUFKT4UNRX377YVOY7FX5YI7 \
  | 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: 8a2b42aa7ca3637dfff8abb1f2dfb847d3b2898fda0676216daef8cefd9b748d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76f9c6c14b75035c21a71ca28f48639552eedc845c1384f2bd54dc653e5db4c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-01-11T09:07:16Z",
    "title_canon_sha256": "accdc34f1cf35d79ba3ee64fb2b7940034fb13b63faffe7fd28e1de7cea7aaf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2068",
    "kind": "arxiv",
    "version": 1
  }
}