Pith Number

pith:T5R5RYII

pith:2007:T5R5RYIIBZWQDHGBSADQBSWIPY

not attested not anchored not stored refs pending

Testing anthropic predictions for Lambda and the CMB temperature

J.A. Peacock

arxiv:0705.0898 v2 · 2007-05-07 · 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{T5R5RYIIBZWQDHGBSADQBSWIPY}

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	2026-07-04T15:44:19.811815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f63d8e1080e6d019cc1900700cac87e03f78aebc5749094595aaeb2ee959818

Aliases

arxiv: 0705.0898 · arxiv_version: 0705.0898v2 · doi: 10.48550/arxiv.0705.0898 · pith_short_12: T5R5RYIIBZWQ · pith_short_16: T5R5RYIIBZWQDHGB · pith_short_8: T5R5RYII

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/T5R5RYIIBZWQDHGBSADQBSWIPY \
  | 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: 9f63d8e1080e6d019cc1900700cac87e03f78aebc5749094595aaeb2ee959818

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98c4e78e1d15a3aba7f5f2f4c6dfb59aa88c4655beda3a267a05ea61db57d20c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-05-07T12:43:37Z",
    "title_canon_sha256": "56a072092f24a5a122c84b04f05a3480fe7702246a1b9e40384f517f35e7eead"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.0898",
    "kind": "arxiv",
    "version": 2
  }
}