Pith Number

pith:OOTEESZO

pith:1999:OOTEESZOZCCFGOWJI27OUL6Q7J

not attested not anchored not stored refs pending

An Absolute Flux Density Measurement of the Supernova Remnant Casseopia A at 32 GHz

A.C.S. Readhead, Brian S. Mason, Erik M. Leitch, John K. Cartwright, Steven T. Myers

arxiv:astro-ph/9903383 v2 · 1999-03-25 · 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{OOTEESZOZCCFGOWJI27OUL6Q7J}

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	2026-07-04T16:10:50.190774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73a6424b2ec884533ac946beea2fd0fa6dee6ffce31051ea15251f6639d10f55

Aliases

arxiv: astro-ph/9903383 · arxiv_version: astro-ph/9903383v2 · doi: 10.48550/arxiv.astro-ph/9903383 · pith_short_12: OOTEESZOZCCF · pith_short_16: OOTEESZOZCCFGOWJ · pith_short_8: OOTEESZO

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/OOTEESZOZCCFGOWJI27OUL6Q7J \
  | 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: 73a6424b2ec884533ac946beea2fd0fa6dee6ffce31051ea15251f6639d10f55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a17c4fa6c72ec3b7d774b2ad2bdb838ea410bfbc371f16c21920e6df960ed02f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-03-25T01:26:58Z",
    "title_canon_sha256": "5ca12dc962d30f4fac8974308bbbd0ec99fc3c935b2d731402bfc7360a253911"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9903383",
    "kind": "arxiv",
    "version": 2
  }
}