Pith Number

pith:XNPQUAAB

pith:2015:XNPQUAABK42JFNBVPNYGG3F3TE

not attested not anchored not stored refs pending

On Separate Universes

Enrico Pajer, Fabian Schmidt, Liang Dai

arxiv:1504.00351 v2 · 2015-04-01 · 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{XNPQUAABK42JFNBVPNYGG3F3TE}

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

2 papers in Pith

An essential building block for cosmological zoom-in perturbation theory

Cosmological zoom-in perturbation theory as a consistent beyond point-particle approximation framework

Receipt and verification

First computed	2026-05-18T01:28:05.391334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb5f0a0001573492b4357b70636cbb992577bf948cc0980bc40c76e13c94803e

Aliases

arxiv: 1504.00351 · arxiv_version: 1504.00351v2 · doi: 10.48550/arxiv.1504.00351 · pith_short_12: XNPQUAABK42J · pith_short_16: XNPQUAABK42JFNBV · pith_short_8: XNPQUAAB

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/XNPQUAABK42JFNBVPNYGG3F3TE \
  | 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: bb5f0a0001573492b4357b70636cbb992577bf948cc0980bc40c76e13c94803e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "900c330ce532c3487cf34f264b622a7459d8f83e748675081fd2ec43fc735e16",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-04-01T19:50:25Z",
    "title_canon_sha256": "4934bda31e839bcd596303810ff348ff3565689b7c7f92622f21f93151179285"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.00351",
    "kind": "arxiv",
    "version": 2
  }
}