Pith Number

pith:E2MEY6KR

pith:2013:E2MEY6KRGUDC5SSF4C7X5HUWC4

not attested not anchored not stored refs pending

The instability of orientifolds and the end of the (string) landscape as we know it

Keith Copsey

arxiv:1303.4791 v1 · 2013-03-19 · hep-th · gr-qc · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E2MEY6KRGUDC5SSF4C7X5HUWC4}

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	2026-05-18T03:30:24.844893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26984c795135062eca45e0bf7e9e96170b5b9688528774f665bab2817711c6f0

Aliases

arxiv: 1303.4791 · arxiv_version: 1303.4791v1 · doi: 10.48550/arxiv.1303.4791 · pith_short_12: E2MEY6KRGUDC · pith_short_16: E2MEY6KRGUDC5SSF · pith_short_8: E2MEY6KR

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/E2MEY6KRGUDC5SSF4C7X5HUWC4 \
  | 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: 26984c795135062eca45e0bf7e9e96170b5b9688528774f665bab2817711c6f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0aa6d7870c7c95c4c5b20dfaac1e6f9b806c8fea81e2c0c85236dfe20b3e5b38",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-03-19T23:25:00Z",
    "title_canon_sha256": "a88130cd009d98948c9715454f4ae845751ef9b688bea0e09952b72fb8a797a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4791",
    "kind": "arxiv",
    "version": 1
  }
}