Pith Number

pith:Z6KJQWA4

pith:2010:Z6KJQWA4BPV6PDJLRFBMN5V53N

not attested not anchored not stored refs pending

Better short-seed quantum-proof extractors

Amnon Ta-Shma, Avraham Ben-Aroya

arxiv:1004.3737 v4 · 2010-04-21 · 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{Z6KJQWA4BPV6PDJLRFBMN5V53N}

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	2026-05-18T04:19:32.351399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf9498581c0bebe78d2b8942c6f6bddb458a586767995e8a4e9165708dcf51f2

Aliases

arxiv: 1004.3737 · arxiv_version: 1004.3737v4 · doi: 10.48550/arxiv.1004.3737 · pith_short_12: Z6KJQWA4BPV6 · pith_short_16: Z6KJQWA4BPV6PDJL · pith_short_8: Z6KJQWA4

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/Z6KJQWA4BPV6PDJLRFBMN5V53N \
  | 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: cf9498581c0bebe78d2b8942c6f6bddb458a586767995e8a4e9165708dcf51f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83631f74b012e4b4c6fb468ebe31db5162511babdfe9a12e5a8e135cbb5ef67a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-04-21T16:13:47Z",
    "title_canon_sha256": "a4220ff690f6007d45cafbcbfe7596bb08777d141ff23434bd39e0a7f4cd37a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.3737",
    "kind": "arxiv",
    "version": 4
  }
}