Pith Number

pith:CZ7SKUNU

pith:2001:CZ7SKUNU4FJNQ5R6AB5YVQ2FCE

not attested not anchored not stored refs pending

Strip Searching for Supernovae

Ermanno F. Borra

arxiv:astro-ph/0102064 v1 · 2001-02-04 · 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{CZ7SKUNU4FJNQ5R6AB5YVQ2FCE}

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	2026-05-18T01:07:46.063377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

167f2551b4e152d8763e007b8ac345110844525957fce35e5de994e5e5acd8e2

Aliases

arxiv: astro-ph/0102064 · arxiv_version: astro-ph/0102064v1 · doi: 10.48550/arxiv.astro-ph/0102064 · pith_short_12: CZ7SKUNU4FJN · pith_short_16: CZ7SKUNU4FJNQ5R6 · pith_short_8: CZ7SKUNU

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/CZ7SKUNU4FJNQ5R6AB5YVQ2FCE \
  | 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: 167f2551b4e152d8763e007b8ac345110844525957fce35e5de994e5e5acd8e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30cd9cb4532ba10cd8cd2756d3c7277b5d2048d7abae052ed5c5ec8d5e34ec5f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-02-04T22:23:53Z",
    "title_canon_sha256": "26ae190f8140c3cb8d0fe82e797f25b6f046912f584fc6779a6ec708b242d39f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0102064",
    "kind": "arxiv",
    "version": 1
  }
}