Pith Number

pith:PD6R32GS

pith:2021:PD6R32GSSHTJN6RK5SYZMDWPBB

not attested not anchored not stored refs pending

The Whisper of a Whimper of a Bang: 2400 Days of the Type Ia SN 2011fe Reveals the Decay of $^{55}$Fe

B. J. Shappee, C. Ashall, C. S. Kochanek, G. S. Anand, K. Z. Stanek, M. A. Tucker, P. Garnavich

arxiv:2111.01144 v2 · 2021-11-01 · 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{PD6R32GSSHTJN6RK5SYZMDWPBB}

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	2026-07-05T05:09:50.058633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78fd1de8d291e696fa2aecb1960ecf08433eea8baaef9d4aae2c76b2c90fcf1e

Aliases

arxiv: 2111.01144 · arxiv_version: 2111.01144v2 · doi: 10.48550/arxiv.2111.01144 · pith_short_12: PD6R32GSSHTJ · pith_short_16: PD6R32GSSHTJN6RK · pith_short_8: PD6R32GS

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/PD6R32GSSHTJN6RK5SYZMDWPBB \
  | 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: 78fd1de8d291e696fa2aecb1960ecf08433eea8baaef9d4aae2c76b2c90fcf1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6afa59d17be58ac3ef3da4fb8c77b3f4e016a7984b13b6d6b97a92b09cb9bcb",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-11-01T18:00:01Z",
    "title_canon_sha256": "1dc4b8ed013d3f0c665c5a52dc8d902ee5611a091400629f66ed0a09aa28a7a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.01144",
    "kind": "arxiv",
    "version": 2
  }
}