Pith Number

pith:IHT7VAB2

pith:2013:IHT7VAB2FZ7W3J5RFMPOF3JXJ7

not attested not anchored not stored refs pending

On CCC-predicted concentric low-variance circles in the CMB sky

R. Penrose, V. G. Gurzadyan

arxiv:1302.5162 v1 · 2013-02-21 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IHT7VAB2FZ7W3J5RFMPOF3JXJ7}

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.

Cited by

1 paper in Pith

A Giant Ring on the sky

Receipt and verification

First computed	2026-05-18T00:01:39.557122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41e7fa803a2e7f6da7b12b1ee2ed374fc9dfc61b45771bcd80089476c16bf3dd

Aliases

arxiv: 1302.5162 · arxiv_version: 1302.5162v1 · doi: 10.48550/arxiv.1302.5162 · pith_short_12: IHT7VAB2FZ7W · pith_short_16: IHT7VAB2FZ7W3J5R · pith_short_8: IHT7VAB2

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/IHT7VAB2FZ7W3J5RFMPOF3JXJ7 \
  | 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: 41e7fa803a2e7f6da7b12b1ee2ed374fc9dfc61b45771bcd80089476c16bf3dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fbb62c4bbc344cd73b4e13166494c5ea721bad2361d4a11264f7427c1d9a2b4",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-02-21T02:49:55Z",
    "title_canon_sha256": "5ec0684c91ef50e2a734e9853e60c36d4d71c37d9fb3e15df219aa08b28cc09f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.5162",
    "kind": "arxiv",
    "version": 1
  }
}