Pith Number

pith:KCTHJDBJ

pith:2012:KCTHJDBJYTQV635VVWF3OHOFVJ

not attested not anchored not stored refs pending

A discrete estimation of the uncertainty of the background redshift and its effects on cosmological parameters

Antonio Enea Romano

arxiv:1204.0866 v4 · 2012-04-04 · 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{KCTHJDBJYTQV635VVWF3OHOFVJ}

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	2026-05-18T00:31:54.409017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50a6748c29c4e15f6fb5ad8bb71dc5aa4c37de5824cb2b26fd2384f4a20093f4

Aliases

arxiv: 1204.0866 · arxiv_version: 1204.0866v4 · doi: 10.48550/arxiv.1204.0866 · pith_short_12: KCTHJDBJYTQV · pith_short_16: KCTHJDBJYTQV635V · pith_short_8: KCTHJDBJ

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/KCTHJDBJYTQV635VVWF3OHOFVJ \
  | 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: 50a6748c29c4e15f6fb5ad8bb71dc5aa4c37de5824cb2b26fd2384f4a20093f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a224fdcaaf711a74e8b9bba81a3d6ab79ae43ad2c4cbda249ebc6035e4f6084",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-04-04T05:26:13Z",
    "title_canon_sha256": "56dffcd1563cf386a6270ffedc79d69fd8d616fe084abf6a2044b7b494fbca98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0866",
    "kind": "arxiv",
    "version": 4
  }
}