Pith Number

pith:QLNG43A5

pith:1996:QLNG43A5EOVZ62W5OZFATVDEBH

not attested not anchored not stored refs pending

The X-ray lightcurve of SN 1987A

(2) Max Planck Institut fuer extraterrestrische Physik), B. Aschenbach (2), G. Hasinger (1), J. Tr\"umper(2) ((1) Astrophysikalisches Institut Potsdam

arxiv:astro-ph/9606149 v1 · 1996-06-24 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QLNG43A5EOVZ62W5OZFATVDEBH}

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	2026-05-18T04:21:40.622598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82da6e6c1d23ab9f6add764a09d46409f2a833b0138b4bab429f4b0f30f53923

Aliases

arxiv: astro-ph/9606149 · arxiv_version: astro-ph/9606149v1 · doi: 10.48550/arxiv.astro-ph/9606149 · pith_short_12: QLNG43A5EOVZ · pith_short_16: QLNG43A5EOVZ62W5 · pith_short_8: QLNG43A5

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/QLNG43A5EOVZ62W5OZFATVDEBH \
  | 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: 82da6e6c1d23ab9f6add764a09d46409f2a833b0138b4bab429f4b0f30f53923

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99d7196a59d7b6d9c61522c70df2cb33cd185663adfdfcd87d48e81dfa8571ed",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-06-24T16:25:22Z",
    "title_canon_sha256": "9aae8c885e15b37afe04cbcfcb020b7d7080e06c3f5189a7cd73d3bc4aef1afc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9606149",
    "kind": "arxiv",
    "version": 1
  }
}