Pith Number

pith:7QMYPJH6

pith:2007:7QMYPJH6GMROSHAM4KU6THQNQ4

not attested not anchored not stored refs pending

The Quantum Measurement Process: Lessons from an Exactly Solvable Model

Armen E. Allahverdyan, Roger Balian, Theo M. Nieuwenhuizen

arxiv:quant-ph/0702135 v2 · 2007-02-14 · 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{7QMYPJH6GMROSHAM4KU6THQNQ4}

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	2026-05-18T00:37:06.530451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc1987a4fe3322e91c0ce2a9e99e0d870d5928e2aaf840b3e66392d30bed299d

Aliases

arxiv: quant-ph/0702135 · arxiv_version: quant-ph/0702135v2 · doi: 10.48550/arxiv.quant-ph/0702135 · pith_short_12: 7QMYPJH6GMRO · pith_short_16: 7QMYPJH6GMROSHAM · pith_short_8: 7QMYPJH6

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/7QMYPJH6GMROSHAM4KU6THQNQ4 \
  | 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: fc1987a4fe3322e91c0ce2a9e99e0d870d5928e2aaf840b3e66392d30bed299d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f8611c1f1e6ba97fe85f33ee61dace476bba95ea2df71b6f68e4323bf825aac",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-02-14T16:34:45Z",
    "title_canon_sha256": "6ac5266dd758f971992af81cba7b474a8c4404bc6b994f23acf32623414d1a27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0702135",
    "kind": "arxiv",
    "version": 2
  }
}