Pith Number

pith:7OFPW4L6

pith:2016:7OFPW4L63FRTQZKWYN7HM4AGQ6

not attested not anchored not stored refs pending

iPTF15dtg: a double-peaked Type Ic Supernova from a massive progenitor

A. Corsi, A. Gal-Yam, B. Bue, C. Fremling, E. Karamehmetoglu, F. Taddia, J. Sollerman, M. Ergon, M. Kasliwal, P. M. Vreeswijk, P. R. Wozniak, R. Lunnan

arxiv:1605.02491 v1 · 2016-05-09 · 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{7OFPW4L63FRTQZKWYN7HM4AGQ6}

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	2026-05-18T01:08:41.471393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb8afb717ed963386556c37e76700687bd1a7629129d1492e0ed72cad9f78b39

Aliases

arxiv: 1605.02491 · arxiv_version: 1605.02491v1 · doi: 10.48550/arxiv.1605.02491 · pith_short_12: 7OFPW4L63FRT · pith_short_16: 7OFPW4L63FRTQZKW · pith_short_8: 7OFPW4L6

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/7OFPW4L63FRTQZKWYN7HM4AGQ6 \
  | 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: fb8afb717ed963386556c37e76700687bd1a7629129d1492e0ed72cad9f78b39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38cb2445766eae22c750544965f18fc6b0289921c2513f538e13806ec18a7437",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-05-09T09:38:20Z",
    "title_canon_sha256": "f1f4e793ab275484b5a68648d0e1188dc9be36a0369ac23d32accaa914a8d39f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02491",
    "kind": "arxiv",
    "version": 1
  }
}