Pith Number

pith:QKXLLZJB

pith:1997:QKXLLZJBNFVLM7WKSYDLOZ4G2U

not attested not anchored not stored refs pending

Reconstruction of quantum states of spin systems via the Jaynes principle of maximum entropy

G. Adam, G. Drobny, P.L. Knight, R. Derka, V. Buzek

arxiv:quant-ph/9701038 v1 · 1997-01-30 · 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{QKXLLZJBNFVLM7WKSYDLOZ4G2U}

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	2026-05-18T01:11:47.051344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82aeb5e521696ab67eca9606b76786d51a650446dfb8bff811d45f099acb5bb8

Aliases

arxiv: quant-ph/9701038 · arxiv_version: quant-ph/9701038v1 · doi: 10.48550/arxiv.quant-ph/9701038 · pith_short_12: QKXLLZJBNFVL · pith_short_16: QKXLLZJBNFVLM7WK · pith_short_8: QKXLLZJB

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/QKXLLZJBNFVLM7WKSYDLOZ4G2U \
  | 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: 82aeb5e521696ab67eca9606b76786d51a650446dfb8bff811d45f099acb5bb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba59ff8a8c9c9edb1d25da70cda76133b9bb177b07d74d11d7c956e4c5921db4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1997-01-30T19:08:26Z",
    "title_canon_sha256": "2e4a0b3f0be99d549963d3c72cffa000b2358dc7e92444bc2eddc48623f1338b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9701038",
    "kind": "arxiv",
    "version": 1
  }
}