Pith Number

pith:WUKBLPEA

pith:2011:WUKBLPEAYD6PW5RQNEQOZBSISH

not attested not anchored not stored refs pending

A New Evolutionary Phase of Supernova Remnant 1987A

Daniel Dewey (MIT), David N. Burrows (Penn State), Judith L. Racusin (GSFC), Richard McCray (Colorado), Sangwook Park (UT Arlinton), Svetozar A. Zhekov (STRI)

arxiv:1104.4825 v1 · 2011-04-26 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WUKBLPEAYD6PW5RQNEQOZBSISH}

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	2026-05-18T02:02:15.127353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b51415bc80c0fcfb76306920ec864891feae5924841e53e74a988a0dbf82254e

Aliases

arxiv: 1104.4825 · arxiv_version: 1104.4825v1 · doi: 10.48550/arxiv.1104.4825 · pith_short_12: WUKBLPEAYD6P · pith_short_16: WUKBLPEAYD6PW5RQ · pith_short_8: WUKBLPEA

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/WUKBLPEAYD6PW5RQNEQOZBSISH \
  | 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: b51415bc80c0fcfb76306920ec864891feae5924841e53e74a988a0dbf82254e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7fd646ad3b068aabbcc8ee92e4b3b988051b9aa3c099d1fb241654bcf2eb5f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-04-26T00:00:00Z",
    "title_canon_sha256": "a5993ca783cf596a13e42d93b1653a8348c754e8a83de3960f5695352f0109c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4825",
    "kind": "arxiv",
    "version": 1
  }
}