Pith Number

pith:EZ5UHHL6

pith:2012:EZ5UHHL6HVW7YL3EXNATWQKIWT

not attested not anchored not stored refs pending

The Self-Calibrating Hubble Diagram

Kerstin Paech, Marek Kowalski, Ulrich Feindt

arxiv:1201.0765 v2 · 2012-01-03 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EZ5UHHL6HVW7YL3EXNATWQKIWT}

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	2026-05-18T01:58:58.202764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

267b439d7e3d6dfc2f64bb413b4148b4f405f45e75354ace7de681b23b58ad1d

Aliases

arxiv: 1201.0765 · arxiv_version: 1201.0765v2 · doi: 10.48550/arxiv.1201.0765 · pith_short_12: EZ5UHHL6HVW7 · pith_short_16: EZ5UHHL6HVW7YL3E · pith_short_8: EZ5UHHL6

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/EZ5UHHL6HVW7YL3EXNATWQKIWT \
  | 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: 267b439d7e3d6dfc2f64bb413b4148b4f405f45e75354ace7de681b23b58ad1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f4c4b703cfed12105518fe6aea823d604347a81f9931bc074af078a451f4ce3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-03T21:00:43Z",
    "title_canon_sha256": "81f5cc6d43f08afd151c919e2991e3ff4d22815da8cac7bd90dc3ce9ab392238"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0765",
    "kind": "arxiv",
    "version": 2
  }
}