Pith Number

pith:6LHPSR5R

pith:2011:6LHPSR5RVHUMMW6LMXJ7G2XFP4

not attested not anchored not stored refs pending

A Spitzer Survey for Dust in Type IIn Supernovae

(2) UVa, (3) Harvard-CfA, (4) UC Berkeley, 5), (5) U Arizona/Steward), Alexei V. Filippenko (4), Alicia M. Soderberg (3), Jeffrey M. Silverman (4), Michael F. Skrutskie (2), Mohan Ganeshalingam (4), Nathan Smith (4, Ori D. Fox (1), Roger A. Chevalier (2), Thea N. Steele (4) ((1) NASA Goddard Space Flight Center

arxiv:1104.5012 v2 · 2011-04-26 · 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{6LHPSR5RVHUMMW6LMXJ7G2XFP4}

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	2026-05-18T02:02:14.548845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2cef947b1a9e8c65bcb65d3f36ae57f174ba0c8c5f1bf58eb635f9450362fec

Aliases

arxiv: 1104.5012 · arxiv_version: 1104.5012v2 · doi: 10.48550/arxiv.1104.5012 · pith_short_12: 6LHPSR5RVHUM · pith_short_16: 6LHPSR5RVHUMMW6L · pith_short_8: 6LHPSR5R

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/6LHPSR5RVHUMMW6LMXJ7G2XFP4 \
  | 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: f2cef947b1a9e8c65bcb65d3f36ae57f174ba0c8c5f1bf58eb635f9450362fec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fc16f2e1f548ba77a0ec9ab4bd6e310088a18a275d7fee9353c93c71870d038",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-04-26T20:00:01Z",
    "title_canon_sha256": "15e021264913d437ea10085d0966a27385d5ada1691b07203e8d6eb34ef4b26d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.5012",
    "kind": "arxiv",
    "version": 2
  }
}