Pith Number

pith:NWD5E4ZW

pith:1998:NWD5E4ZWKV4EDKNKNWQWVPOCFV

not attested not anchored not stored refs pending

Reconstructing Projected Matter Density from Cosmic Microwave Background

Matias Zaldarriaga, Uros Seljak

arxiv:astro-ph/9810257 v1 · 1998-10-16 · 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{NWD5E4ZWKV4EDKNKNWQWVPOCFV}

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	2026-05-18T01:08:01.307896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d87d27336557841a9aa6da16abdc22d55ba9616c73c060c011685419615fc01

Aliases

arxiv: astro-ph/9810257 · arxiv_version: astro-ph/9810257v1 · doi: 10.48550/arxiv.astro-ph/9810257 · pith_short_12: NWD5E4ZWKV4E · pith_short_16: NWD5E4ZWKV4EDKNK · pith_short_8: NWD5E4ZW

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/NWD5E4ZWKV4EDKNKNWQWVPOCFV \
  | 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: 6d87d27336557841a9aa6da16abdc22d55ba9616c73c060c011685419615fc01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edfe96e1a05a4208e31c0c96906529c0ceaac0e9ac2bbcf10168af970d2553a6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-10-16T20:15:21Z",
    "title_canon_sha256": "161cdd82a741ff0df7a74a3c4d3dc8867a4d46fad25fad0f72187b2291997358"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9810257",
    "kind": "arxiv",
    "version": 1
  }
}