Pith Number

pith:NHVJN2LM

pith:2013:NHVJN2LMNRY534FAE5OCQ7TNAK

not attested not anchored not stored refs pending

Phantom Instability of Viscous Dark Energy in Anisotropic Space-Time

Hassan Amirhashchi

arxiv:1304.2292 v1 · 2013-04-01 · 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{NHVJN2LMNRY534FAE5OCQ7TNAK}

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	2026-05-18T03:28:43.510129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69ea96e96c6c71ddf0a0275c287e6d02be0d0854b84413fb81d17be725dbdadd

Aliases

arxiv: 1304.2292 · arxiv_version: 1304.2292v1 · doi: 10.48550/arxiv.1304.2292 · pith_short_12: NHVJN2LMNRY5 · pith_short_16: NHVJN2LMNRY534FA · pith_short_8: NHVJN2LM

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/NHVJN2LMNRY534FAE5OCQ7TNAK \
  | 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: 69ea96e96c6c71ddf0a0275c287e6d02be0d0854b84413fb81d17be725dbdadd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a54a8d5599f033cf3e2d635a690afed481c8b05e43f0cd7639206ebbf5f5d2f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-04-01T00:41:17Z",
    "title_canon_sha256": "b0dca5dd90aafccf67b93f19628a9d2c1eba2dcd55447fe360f19d43848ef447"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2292",
    "kind": "arxiv",
    "version": 1
  }
}