Pith Number

pith:T4YEHOVI

pith:2012:T4YEHOVIJPLSPP4K6OYZPG4JNW

not attested not anchored not stored refs pending

The remnant of Supernova 1987A resolved at 3 mm wavelength

B.M. Gaensler (Sydney Institute for Astronomy (SIfA), CAASTRO), C.-Y. Ng (Department of Physics, Giovanna Zanardo (ICRAR), Jacco Th. van Loon (Keele University), Keele University), Lister Staveley-Smith (ICRAR, Masha Lakicevic (ESO, McGill University, Montreal), Toby Potter (ICRAR)

arxiv:1203.4982 v1 · 2012-03-22 · 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{T4YEHOVIJPLSPP4K6OYZPG4JNW}

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	2026-05-18T01:58:04.563003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f3043baa84bd727bf8af3b1979b896daa1b0ef3b6811b1ff00a060d6e555548

Aliases

arxiv: 1203.4982 · arxiv_version: 1203.4982v1 · doi: 10.48550/arxiv.1203.4982 · pith_short_12: T4YEHOVIJPLS · pith_short_16: T4YEHOVIJPLSPP4K · pith_short_8: T4YEHOVI

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/T4YEHOVIJPLSPP4K6OYZPG4JNW \
  | 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: 9f3043baa84bd727bf8af3b1979b896daa1b0ef3b6811b1ff00a060d6e555548

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fe466d48c654f7cec6493f2be67e6c87ccc82e5dc49865dd6bb8b6bce907e4a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-03-22T13:26:06Z",
    "title_canon_sha256": "90f56792451f100c2167b4b75f8134a15ef84b0731263df8806fd0db96950a3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4982",
    "kind": "arxiv",
    "version": 1
  }
}