Pith Number

pith:NB5HLORJ

pith:2013:NB5HLORJU3IIHKWWWLNT5PFV3M

not attested not anchored not stored refs pending

Entanglement sudden-death time: a geometric quantity

Douglas Mundarain, Esteban Isasi, Rams\'es S\'anchez

arxiv:1309.3555 v2 · 2013-09-13 · quant-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{NB5HLORJU3IIHKWWWLNT5PFV3M}

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	2026-05-18T02:29:53.223080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

687a75ba29a6d083aad6b2db3ebcb5db3dcb2dd88d51c05d010ff3e516fad400

Aliases

arxiv: 1309.3555 · arxiv_version: 1309.3555v2 · doi: 10.48550/arxiv.1309.3555 · pith_short_12: NB5HLORJU3II · pith_short_16: NB5HLORJU3IIHKWW · pith_short_8: NB5HLORJ

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/NB5HLORJU3IIHKWWWLNT5PFV3M \
  | 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: 687a75ba29a6d083aad6b2db3ebcb5db3dcb2dd88d51c05d010ff3e516fad400

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32cc3ccb6c2d734133691d44e08ecf75c61091b9dc2bc38c5502b87d584ede9c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-09-13T19:57:02Z",
    "title_canon_sha256": "68098bbccee44fb02e22dfd61b227270eebd871122c13e67e1e1573bbddb80c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.3555",
    "kind": "arxiv",
    "version": 2
  }
}