Pith Number

pith:ZX56ZS7R

pith:2012:ZX56ZS7RNBVXXUQSL7SNO6TA6D

not attested not anchored not stored refs pending

Ground state cooling is not possible given initial system-thermal bath factorization

Dvira Segal, Lian-Ao Wu, Paul Brumer

arxiv:1210.4394 v1 · 2012-10-16 · 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{ZX56ZS7RNBVXXUQSL7SNO6TA6D}

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	2026-05-18T01:11:27.712659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdfbeccbf1686b7bd2125fe4d77a60f0cf67a20eca8d53d38390ce430e586ce1

Aliases

arxiv: 1210.4394 · arxiv_version: 1210.4394v1 · doi: 10.48550/arxiv.1210.4394 · pith_short_12: ZX56ZS7RNBVX · pith_short_16: ZX56ZS7RNBVXXUQS · pith_short_8: ZX56ZS7R

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/ZX56ZS7RNBVXXUQSL7SNO6TA6D \
  | 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: cdfbeccbf1686b7bd2125fe4d77a60f0cf67a20eca8d53d38390ce430e586ce1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3250a111ec67810f40760f363db4c53c55c71f0e4b712c6a9e9fe64bb5c69342",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-10-16T13:02:23Z",
    "title_canon_sha256": "da871c45a818c23086c39fadd03534f5c6893eb041736267a5fb4ecd07b4baaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.4394",
    "kind": "arxiv",
    "version": 1
  }
}