Pith Number

pith:5JG6KO7A

pith:2001:5JG6KO7AKJ24BVSJ2WBLNMRMPO

not attested not anchored not stored refs pending

The Crab Nebula at 850 microns

D. A. Green

arxiv:astro-ph/0110646 v1 · 2001-10-30 · 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{5JG6KO7AKJ24BVSJ2WBLNMRMPO}

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	2026-07-04T14:11:36.580541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea4de53be05275c0d649d582b6b22c7b9d2077363f00436807b5ed5221ba402d

Aliases

arxiv: astro-ph/0110646 · arxiv_version: astro-ph/0110646v1 · doi: 10.48550/arxiv.astro-ph/0110646 · pith_short_12: 5JG6KO7AKJ24 · pith_short_16: 5JG6KO7AKJ24BVSJ · pith_short_8: 5JG6KO7A

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/5JG6KO7AKJ24BVSJ2WBLNMRMPO \
  | 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: ea4de53be05275c0d649d582b6b22c7b9d2077363f00436807b5ed5221ba402d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1164375a269e41e2e51a7d93d2cf8740d93d5afa102937e80130c0158328a521",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-10-30T11:33:20Z",
    "title_canon_sha256": "470fc3ea9e2189fba018817c3adeafbb9f06b98304ba698dd4ca08417b4327ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0110646",
    "kind": "arxiv",
    "version": 1
  }
}