Pith Number

pith:DM6QIICP

pith:2011:DM6QIICP4TUBQ5LQQN4H6S4A4H

not attested not anchored not stored refs pending

Towards a realization of Schwarzschild-(anti-)de Sitter spacetime as a particulate metamaterial

Akhlesh Lakhtakia, Tom G. Mackay (University of Edinburgh)

arxiv:1102.1708 v1 · 2011-02-08 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DM6QIICP4TUBQ5LQQN4H6S4A4H}

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	2026-05-18T02:22:39.551057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b3d04204fe4e818757083787f4b80e1fec1cbf3e3c9b765ce8312cf6c194df4

Aliases

arxiv: 1102.1708 · arxiv_version: 1102.1708v1 · doi: 10.48550/arxiv.1102.1708 · pith_short_12: DM6QIICP4TUB · pith_short_16: DM6QIICP4TUBQ5LQ · pith_short_8: DM6QIICP

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/DM6QIICP4TUBQ5LQQN4H6S4A4H \
  | 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: 1b3d04204fe4e818757083787f4b80e1fec1cbf3e3c9b765ce8312cf6c194df4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a606692f3a10105a26032f3025c77a694103182da10bd47f88a66c818fefe0ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2011-02-08T20:11:38Z",
    "title_canon_sha256": "c79b8bcf2cc66b1d7441629802429067c5907a6af23aba2b99cb6b575f76b72f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.1708",
    "kind": "arxiv",
    "version": 1
  }
}