Pith Number

pith:TKJXUDQR

pith:1995:TKJXUDQRRYVENGGN4ZCT7TTHSV

not attested not anchored not stored refs pending

The Physics of Microwave Background Anisotropies

Joseph Silk, Naoshi Sugiyama, Wayne Hu

arxiv:astro-ph/9504057 v1 · 1995-04-18 · 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{TKJXUDQRRYVENGGN4ZCT7TTHSV}

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	2026-05-18T00:25:02.623549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a937a0e118e2a4698cde6453fce679570c1b8bf51b42b21d109e6ad240199ea

Aliases

arxiv: astro-ph/9504057 · arxiv_version: astro-ph/9504057v1 · doi: 10.48550/arxiv.astro-ph/9504057 · pith_short_12: TKJXUDQRRYVE · pith_short_16: TKJXUDQRRYVENGGN · pith_short_8: TKJXUDQR

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/TKJXUDQRRYVENGGN4ZCT7TTHSV \
  | 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: 9a937a0e118e2a4698cde6453fce679570c1b8bf51b42b21d109e6ad240199ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c44fb8c72c22c8140cf7ae94c7234d3bb3d7fe931887092d67761057bf647f0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-04-18T14:25:07Z",
    "title_canon_sha256": "da8fb2a5df73b10eeb86e8e541fbe1564fa7d28997af3e7575713323a3b75ff5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9504057",
    "kind": "arxiv",
    "version": 1
  }
}