Pith Number

pith:FA47DIV5

pith:2013:FA47DIV5B5JZHXPKNYPYBO6JVP

not attested not anchored not stored refs pending

Cosmological backreaction and the future evolution of an accelerating universe

A. S. Majumdar, Nilok Bose

arxiv:1306.2877 v1 · 2013-06-12 · 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{FA47DIV5B5JZHXPKNYPYBO6JVP}

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	2026-05-18T03:21:09.157392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2839f1a2bd0f5393ddea6e1f80bbc9abc721b9b1c01663afb00022147d305b5c

Aliases

arxiv: 1306.2877 · arxiv_version: 1306.2877v1 · doi: 10.48550/arxiv.1306.2877 · pith_short_12: FA47DIV5B5JZ · pith_short_16: FA47DIV5B5JZHXPK · pith_short_8: FA47DIV5

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/FA47DIV5B5JZHXPKNYPYBO6JVP \
  | 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: 2839f1a2bd0f5393ddea6e1f80bbc9abc721b9b1c01663afb00022147d305b5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8cf4bc4609ec662c37534a69df2d95c9573e2d0a46de6a3325943563d206214",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-12T16:04:47Z",
    "title_canon_sha256": "0cdd5763a1801e5a9c7c40b9817b83597f896fabc59565715bf284d325115772"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2877",
    "kind": "arxiv",
    "version": 1
  }
}