Pith Number

pith:XNOCTBS6

pith:2010:XNOCTBS6NURSMKAAMG43OTTVCX

not attested not anchored not stored refs pending

Position-Based Quantum Cryptography: Impossibility and Constructions

Christian Schaffner, Harry Buhrman, Nishanth Chandran, Rafail Ostrovsky, Ran Gelles, Serge Fehr, Vipul Goyal

arxiv:1009.2490 v4 · 2010-09-13 · quant-ph · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XNOCTBS6NURSMKAAMG43OTTVCX}

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	2026-05-18T02:54:54.542082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb5c29865e6d2326280061b9b74e7515c66af2b37f384b02b267ee98702c280e

Aliases

arxiv: 1009.2490 · arxiv_version: 1009.2490v4 · doi: 10.48550/arxiv.1009.2490 · pith_short_12: XNOCTBS6NURS · pith_short_16: XNOCTBS6NURSMKAA · pith_short_8: XNOCTBS6

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/XNOCTBS6NURSMKAAMG43OTTVCX \
  | 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: bb5c29865e6d2326280061b9b74e7515c66af2b37f384b02b267ee98702c280e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01b111a33828347a5f4d9841616d52f2dad099096fed86eaffbc2c879d74a2d7",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-09-13T19:41:13Z",
    "title_canon_sha256": "110392ab894cf23936540e3e4eb5c244e2b5a2000a717d9898ee362994cdf698"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.2490",
    "kind": "arxiv",
    "version": 4
  }
}