Pith Number

pith:TTSZCFYP

pith:2012:TTSZCFYPBTUXAP5OJ2RO5WRWJK

not attested not anchored not stored refs pending

Zooming in on Supernova 1987A at sub-mm wavelengths

Carlos De Breuck (ESO), Ferdinando Patat (ESO), Jacco Th. van Loon (Keele University), Keele University), Masha Lakicevic (ESO, Thomas Stanke (ESO)

arxiv:1203.4975 v1 · 2012-03-22 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TTSZCFYPBTUXAP5OJ2RO5WRWJK}

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	2026-05-18T01:58:04.571152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ce591170f0ce9703fae4ea2eeda364a83a7d17f62b29a5451c3f25796d07d79

Aliases

arxiv: 1203.4975 · arxiv_version: 1203.4975v1 · doi: 10.48550/arxiv.1203.4975 · pith_short_12: TTSZCFYPBTUX · pith_short_16: TTSZCFYPBTUXAP5O · pith_short_8: TTSZCFYP

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/TTSZCFYPBTUXAP5OJ2RO5WRWJK \
  | 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: 9ce591170f0ce9703fae4ea2eeda364a83a7d17f62b29a5451c3f25796d07d79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32ff8799fd9033cce995209c53650c5e56520cb5e182980a56202abc70a3c10a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-03-22T12:57:16Z",
    "title_canon_sha256": "34a33ddf3226612d205e745c54ff280851a3f300e66c7074367cc2d9de08bda1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4975",
    "kind": "arxiv",
    "version": 1
  }
}