Pith Number

pith:SFUSLF4E

pith:2012:SFUSLF4ERVNXOGUENOFXVO5S44

not attested not anchored not stored refs pending

Probing Dark Energy Anisotropy

Eric V. Linder, Stephen A. Appleby

arxiv:1210.8221 v2 · 2012-10-31 · 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{SFUSLF4ERVNXOGUENOFXVO5S44}

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	2026-05-18T03:34:37.839390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91692597848d5b771a846b8b7abbb2e73f51ac50123d4bbceb4a5ebae98ccfc8

Aliases

arxiv: 1210.8221 · arxiv_version: 1210.8221v2 · doi: 10.48550/arxiv.1210.8221 · pith_short_12: SFUSLF4ERVNX · pith_short_16: SFUSLF4ERVNXOGUE · pith_short_8: SFUSLF4E

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/SFUSLF4ERVNXOGUENOFXVO5S44 \
  | 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: 91692597848d5b771a846b8b7abbb2e73f51ac50123d4bbceb4a5ebae98ccfc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28277efe9e3a39d629fd245368afeb0e1aa7eb132dc326b64a76858b406aef72",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-10-31T02:59:16Z",
    "title_canon_sha256": "af5122b6777e999c7a220555565651ddbe5a74b1fe97fb4571247f00d9b4e0cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.8221",
    "kind": "arxiv",
    "version": 2
  }
}