Pith Number

pith:4DY2MZ6Y

pith:2013:4DY2MZ6YRGII77HDXP4OMK5G7W

not attested not anchored not stored refs pending

Metamaterial model of tachyonic dark energy

Igor I. Smolyaninov

arxiv:1310.8155 v2 · 2013-10-30 · physics.optics · 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{4DY2MZ6YRGII77HDXP4OMK5G7W}

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	2026-05-18T02:58:56.631452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0f1a667d889908ffce3bbf8e62ba6fd9c2670f5b2b5eea8b64d62ccc183d473

Aliases

arxiv: 1310.8155 · arxiv_version: 1310.8155v2 · doi: 10.48550/arxiv.1310.8155 · pith_short_12: 4DY2MZ6YRGII · pith_short_16: 4DY2MZ6YRGII77HD · pith_short_8: 4DY2MZ6Y

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/4DY2MZ6YRGII77HDXP4OMK5G7W \
  | 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: e0f1a667d889908ffce3bbf8e62ba6fd9c2670f5b2b5eea8b64d62ccc183d473

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fd2f7198510325acea95e34263e6f3597986cf45dac75a0aefdcf2d5cfb37df",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-10-30T14:00:57Z",
    "title_canon_sha256": "7e063ae2edfa5530d9499817dd680f75f3ef04c85d431887ca5c13ad753ae888"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.8155",
    "kind": "arxiv",
    "version": 2
  }
}