Pith Number

pith:KJKSZURY

pith:1999:KJKSZURYPBNYRCB7OY3DT3QLOE

not attested not anchored not stored refs pending

Synchrotron Radiation as CMB Foreground

George F. Smoot

arxiv:astro-ph/9902201 v1 · 1999-02-14 · 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{KJKSZURYPBNYRCB7OY3DT3QLOE}

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	2026-07-04T14:16:33.377140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52552cd238785b88883f763639ee0b71227db8c965c271c4d9b7399e3d346f13

Aliases

arxiv: astro-ph/9902201 · arxiv_version: astro-ph/9902201v1 · doi: 10.48550/arxiv.astro-ph/9902201 · pith_short_12: KJKSZURYPBNY · pith_short_16: KJKSZURYPBNYRCB7 · pith_short_8: KJKSZURY

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/KJKSZURYPBNYRCB7OY3DT3QLOE \
  | 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: 52552cd238785b88883f763639ee0b71227db8c965c271c4d9b7399e3d346f13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1c3c86c33faa9ddcad120795cf622345d06157f76cdbffb08b9e950eb1a5b73",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-02-14T20:40:21Z",
    "title_canon_sha256": "786b76896a37ca6201b3081c6da39bf2793c303aacdbf8e31ea025b7319cb9ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9902201",
    "kind": "arxiv",
    "version": 1
  }
}