Pith Number

pith:LLC7XLKX

pith:2001:LLC7XLKXEZJ3JYYCXLIA7KXR24

not attested not anchored not stored refs pending

Was SN1997ff at z~1.7 magnified by gravitational lensing?

Geraint F. Lewis, Rodrigo A. Ibata

arxiv:astro-ph/0104254 v2 · 2001-04-16 · 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{LLC7XLKXEZJ3JYYCXLIA7KXR24}

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	2026-05-18T01:40:44.627267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ac5fbad572653b4e302bad00faaf1d73dce937c0553202adfc2380c8b86d999

Aliases

arxiv: astro-ph/0104254 · arxiv_version: astro-ph/0104254v2 · doi: 10.48550/arxiv.astro-ph/0104254 · pith_short_12: LLC7XLKXEZJ3 · pith_short_16: LLC7XLKXEZJ3JYYC · pith_short_8: LLC7XLKX

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/LLC7XLKXEZJ3JYYCXLIA7KXR24 \
  | 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: 5ac5fbad572653b4e302bad00faaf1d73dce937c0553202adfc2380c8b86d999

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6318ef3e6bdea6529692bdd20d2800be6e6e675ac2f7e8629d7ef9a3077fd1a4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-04-16T05:35:59Z",
    "title_canon_sha256": "199a956d8cc46dfbd51885633b56a64b1fac444502fa83fd09ed0fde7c345cb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0104254",
    "kind": "arxiv",
    "version": 2
  }
}