Pith Number

pith:UHNZHN5C

pith:2009:UHNZHN5CXLHCK6OBZE6HFQIL75

not attested not anchored not stored refs pending

Measurable lower bounds on concurrence

Iman Sargolzahi, Mohsen Sarbishaei, Sayyed Yahya Mirafzali

arxiv:0910.1928 v2 · 2009-10-10 · 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{UHNZHN5CXLHCK6OBZE6HFQIL75}

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	2026-05-18T04:31:21.125578Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1db93b7a2bace2579c1c93c72c10bff50e5205c50b87e7ad55d5057fc696c86

Aliases

arxiv: 0910.1928 · arxiv_version: 0910.1928v2 · doi: 10.48550/arxiv.0910.1928 · pith_short_12: UHNZHN5CXLHC · pith_short_16: UHNZHN5CXLHCK6OB · pith_short_8: UHNZHN5C

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/UHNZHN5CXLHCK6OBZE6HFQIL75 \
  | 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: a1db93b7a2bace2579c1c93c72c10bff50e5205c50b87e7ad55d5057fc696c86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a76088c88b84244f03e536f52c238e1d6f4d03e662e0086def9d6e3e8158e836",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-10-10T15:42:56Z",
    "title_canon_sha256": "bcd1355595e772dca21b80fb9d1076911d07c559e7d89f23bfa2cbbe5d1a22ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1928",
    "kind": "arxiv",
    "version": 2
  }
}