Pith Number

pith:IM2WLQRH

pith:2001:IM2WLQRH47B4L2ZJCQMX2LCFRG

not attested not anchored not stored refs pending

Optical and Ultraviolet Spectroscopy of SN 1995N: Evidence for Strong Circumstellar Interaction

Aaron J. Barth, Alexei V. Filippenko, Bruno Leibundgut, Claes Fransson, Douglas C. Leonard, Jesper Sollerman, Peter Lundqvist, Robert A. Fesen, Robert P. Kirshner, Roger A. Chevalier, Schuyler D. Van Dyk, Weidong Li

arxiv:astro-ph/0108149 v1 · 2001-08-08 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IM2WLQRH47B4L2ZJCQMX2LCFRG}

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.

Cited by

2 papers in Pith

A 14-year-old Mystery: The Peculiar Case of the Engine-driven SN 2012ap

From mass-loss histories to lightcurves: a generalised framework for interaction-powered transients

Receipt and verification

First computed	2026-07-04T16:23:56.200830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

433565c227e7c3c5eb2914197d2c4589a8d271ea678a9ead23c4b736248dea98

Aliases

arxiv: astro-ph/0108149 · arxiv_version: astro-ph/0108149v1 · doi: 10.48550/arxiv.astro-ph/0108149 · pith_short_12: IM2WLQRH47B4 · pith_short_16: IM2WLQRH47B4L2ZJ · pith_short_8: IM2WLQRH

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/IM2WLQRH47B4L2ZJCQMX2LCFRG \
  | 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: 433565c227e7c3c5eb2914197d2c4589a8d271ea678a9ead23c4b736248dea98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6425e571d9ee7a23eeeff2de33817500af2276e73cb096e9b6212a89c7d091de",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-08-08T21:08:52Z",
    "title_canon_sha256": "384dcf2d44376c64bfe78f174310f072a840669c10434fb3b199dd2ff4b704ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0108149",
    "kind": "arxiv",
    "version": 1
  }
}