Pith Number

pith:5FXYQDI6

pith:2018:5FXYQDI6QUEALUH4Y5RP4NN6X3

not attested not anchored not stored refs pending

Practical and unconditionally secure spacetime-constrained oblivious transfer

Dami\'an Pital\'ua-Garc\'ia, Iordanis Kerenidis

arxiv:1811.07410 v1 · 2018-11-18 · 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{5FXYQDI6QUEALUH4Y5RP4NN6X3}

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	2026-05-18T00:00:24.594493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e96f880d1e850805d0fcc762fe35bebeffca5fa23b5acc96f6747179b0029bf1

Aliases

arxiv: 1811.07410 · arxiv_version: 1811.07410v1 · doi: 10.48550/arxiv.1811.07410 · pith_short_12: 5FXYQDI6QUEA · pith_short_16: 5FXYQDI6QUEALUH4 · pith_short_8: 5FXYQDI6

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/5FXYQDI6QUEALUH4Y5RP4NN6X3 \
  | 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: e96f880d1e850805d0fcc762fe35bebeffca5fa23b5acc96f6747179b0029bf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1561c523bb0268bd78ea620e4390e8c189420ad5af68bec38c6cda781998c4d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-11-18T21:52:53Z",
    "title_canon_sha256": "c3f2066b8eed97d2e87ce4a4690ee3be26d7ee8c4dc42cb4c69f03e2bf2fa6ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07410",
    "kind": "arxiv",
    "version": 1
  }
}