Pith Number

pith:6CHH5AYW

pith:2012:6CHH5AYWVXJS6ZUZCXKLJHHL7O

not attested not anchored not stored refs pending

An exact quantification of backreaction in relativistic cosmology

Kjell Rosquist, Reza Tavakol, Timothy Clifton

arxiv:1203.6478 v4 · 2012-03-29 · gr-qc · 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{6CHH5AYWVXJS6ZUZCXKLJHHL7O}

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	2026-05-18T03:14:50.346309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f08e7e8316add32f669915d4b49cebfbbb66e54e0317cf06d0c42de438416c37

Aliases

arxiv: 1203.6478 · arxiv_version: 1203.6478v4 · doi: 10.48550/arxiv.1203.6478 · pith_short_12: 6CHH5AYWVXJS · pith_short_16: 6CHH5AYWVXJS6ZUZ · pith_short_8: 6CHH5AYW

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/6CHH5AYWVXJS6ZUZCXKLJHHL7O \
  | 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: f08e7e8316add32f669915d4b49cebfbbb66e54e0317cf06d0c42de438416c37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a4316501cbf76b1efc12528a6c8daf4a2b6e7ac8a05e7497cca25ab08e1215f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-03-29T09:57:31Z",
    "title_canon_sha256": "77c9a3764e25b0b7d80f03172cd7d1f801f8b8166af1144bbe0a1114f94bdf97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6478",
    "kind": "arxiv",
    "version": 4
  }
}