Pith Number

pith:4TNAO54W

pith:2013:4TNAO54WTPUODTE6P2Z3GGWTW4

not attested not anchored not stored refs pending

New Constraints On The Dark Energy Equation of State

Alessandra Silvestri, Alessandro Melchiorri, Carlo Baccigalupi, Matteo Martinelli, Najla Said

arxiv:1303.4353 v1 · 2013-03-18 · 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{4TNAO54WTPUODTE6P2Z3GGWTW4}

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	2026-05-18T03:14:52.724274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4da0777969be8e1cc9e7eb3b31ad3b71a7a6bf0d36680ebaff754b5c713712b

Aliases

arxiv: 1303.4353 · arxiv_version: 1303.4353v1 · doi: 10.48550/arxiv.1303.4353 · pith_short_12: 4TNAO54WTPUO · pith_short_16: 4TNAO54WTPUODTE6 · pith_short_8: 4TNAO54W

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/4TNAO54WTPUODTE6P2Z3GGWTW4 \
  | 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: e4da0777969be8e1cc9e7eb3b31ad3b71a7a6bf0d36680ebaff754b5c713712b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "439c4622779ea56dfec4be51514c581dc1c9701959711869e5a35f72fcd9b8b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-18T18:29:24Z",
    "title_canon_sha256": "0528b558b626efcd8147cf9013e88aaa0a057b59858d1e47264541e873c62ad4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4353",
    "kind": "arxiv",
    "version": 1
  }
}