Pith Number

pith:EY2VWLV2

pith:2013:EY2VWLV2LIBFK7TLTYDLZA5IX5

not attested not anchored not stored refs pending

The progenitor of SN 2011ja: Clues from circumstellar interaction

Alak Ray, David Pooley, Firoza Sutaria, Naveen Yadav, Poonam Chandra, Randall Smith, Rupak Roy, Sayan Chakraborti, Stuart Ryder, Vikram V. Dwarkadas

arxiv:1302.7067 v2 · 2013-02-28 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EY2VWLV2LIBFK7TLTYDLZA5IX5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:51:26.291490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26355b2eba5a02557e6b9e06bc83a8bf516ab2e8208b3d6cc12d4075d3f45c4d

Aliases

arxiv: 1302.7067 · arxiv_version: 1302.7067v2 · doi: 10.48550/arxiv.1302.7067 · pith_short_12: EY2VWLV2LIBF · pith_short_16: EY2VWLV2LIBFK7TL · pith_short_8: EY2VWLV2

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/EY2VWLV2LIBFK7TLTYDLZA5IX5 \
  | 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: 26355b2eba5a02557e6b9e06bc83a8bf516ab2e8208b3d6cc12d4075d3f45c4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e6ca1b1bfde58c48b31fd6697a786ca27eae3ed3b7176d0bf6ae1120ce821d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-02-28T03:27:55Z",
    "title_canon_sha256": "4dd7bf9b0666b47a20f686833927ec0fd59f8d67456e0b51501ed45fbe316e37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.7067",
    "kind": "arxiv",
    "version": 2
  }
}