Pith Number

pith:K6UNFIAW

pith:2012:K6UNFIAWILZIFDU6JKB6Q2JECR

not attested not anchored not stored refs pending

The Radio Signatures of the First Supernovae

Avery Meiksin (IfA, Daniel J. Whalen (Carnegie-Mellon University), University of Edinburgh)

arxiv:1209.1915 v2 · 2012-09-10 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K6UNFIAWILZIFDU6JKB6Q2JECR}

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	2026-05-18T01:54:37.861805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57a8d2a01642f2828e9e4a83e8692414487d790eaca0f993114067908812cbf0

Aliases

arxiv: 1209.1915 · arxiv_version: 1209.1915v2 · doi: 10.48550/arxiv.1209.1915 · pith_short_12: K6UNFIAWILZI · pith_short_16: K6UNFIAWILZIFDU6 · pith_short_8: K6UNFIAW

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/K6UNFIAWILZIFDU6JKB6Q2JECR \
  | 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: 57a8d2a01642f2828e9e4a83e8692414487d790eaca0f993114067908812cbf0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d88be544987f19ae5e4c8621d2cf50a1fb1e7977351624c72759eebee48bb48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-09-10T09:30:29Z",
    "title_canon_sha256": "b8395a49e1a131d05bb87d05ec613e62b8494862f23f25785960fe94315d444a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1915",
    "kind": "arxiv",
    "version": 2
  }
}