Pith Number

pith:JMYAPFUE

pith:2009:JMYAPFUEU4B27V76UD4XOJK4Q3

not attested not anchored not stored refs pending

Can Cosmic Parallax Distinguish Between Anisotropic Cosmologies?

Eric J. West, Mark Trodden, Michele Fontanini

arxiv:0905.3727 v1 · 2009-05-22 · 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{JMYAPFUEU4B27V76UD4XOJK4Q3}

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	2026-07-04T17:18:19.090022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b30079684a703afd7fea0f977255c86ff034022d5198d3d5d203f70c1f59a13

Aliases

arxiv: 0905.3727 · arxiv_version: 0905.3727v1 · doi: 10.48550/arxiv.0905.3727 · pith_short_12: JMYAPFUEU4B2 · pith_short_16: JMYAPFUEU4B27V76 · pith_short_8: JMYAPFUE

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/JMYAPFUEU4B27V76UD4XOJK4Q3 \
  | 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: 4b30079684a703afd7fea0f977255c86ff034022d5198d3d5d203f70c1f59a13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc4818e866ac0686fbf358d294065b56558b5c793caf54dc67e7cc16ff167dd6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-22T17:13:33Z",
    "title_canon_sha256": "ec8484222838bcd25f050b2614a7011ece38925878bea6fb2a0303967e03e21a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3727",
    "kind": "arxiv",
    "version": 1
  }
}