Pith Number

pith:2UDM7ECD

pith:2000:2UDM7ECD4UMSAHFKNABHYSGD5B

not attested not anchored not stored refs pending

Testing Standard and Degenerate Big Bang Nucleosynthesis with BOOMERanG and MAXIMA-1

A. Melchiorri, G. Mangano, G. Miele, O. Pisanti, S. Esposito

arxiv:astro-ph/0007419 v2 · 2000-07-27 · astro-ph · gr-qc · hep-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{2UDM7ECD4UMSAHFKNABHYSGD5B}

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	2026-07-04T16:16:57.685173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d506cf9043e519201caa68027c48c3e8530243130f20268ebd590aa23d72c204

Aliases

arxiv: astro-ph/0007419 · arxiv_version: astro-ph/0007419v2 · doi: 10.48550/arxiv.astro-ph/0007419 · pith_short_12: 2UDM7ECD4UMS · pith_short_16: 2UDM7ECD4UMSAHFK · pith_short_8: 2UDM7ECD

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/2UDM7ECD4UMSAHFKNABHYSGD5B \
  | 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: d506cf9043e519201caa68027c48c3e8530243130f20268ebd590aa23d72c204

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45e4b580d96f5dfd2d065d30d4dc691314fa00845b9b2fe999489cd731834882",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-07-27T17:31:16Z",
    "title_canon_sha256": "c0d7ddb6c6ea76c295de451a3fcbeea11acff38c426964c63552a2e6d60de7be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0007419",
    "kind": "arxiv",
    "version": 2
  }
}