Pith Number

pith:T7YPTGCV

pith:2000:T7YPTGCVXQ6L5M2SC7KNMSCZO3

not attested not anchored not stored refs pending

Dark energy and the Boomerang data

Italy), Luca Amendola (Osservatorio Astronomico di Roma

arxiv:astro-ph/0006300 v2 · 2000-06-21 · astro-ph · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T7YPTGCVXQ6L5M2SC7KNMSCZO3}

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	2026-07-04T15:26:19.049700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ff0f99855bc3cbeb35217d4d6485976f2390bf2f9003e06662962d0a6908141

Aliases

arxiv: astro-ph/0006300 · arxiv_version: astro-ph/0006300v2 · doi: 10.48550/arxiv.astro-ph/0006300 · pith_short_12: T7YPTGCVXQ6L · pith_short_16: T7YPTGCVXQ6L5M2S · pith_short_8: T7YPTGCV

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/T7YPTGCVXQ6L5M2SC7KNMSCZO3 \
  | 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: 9ff0f99855bc3cbeb35217d4d6485976f2390bf2f9003e06662962d0a6908141

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3a1bf2318bf393071ba192f60394f12f63f212228ceec66779075a339051940",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-06-21T13:13:06Z",
    "title_canon_sha256": "22b790f85f62285f5e23d3d9d4058b8e2cc4f7596a2b11204fd0e4eda240cfe6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0006300",
    "kind": "arxiv",
    "version": 2
  }
}