Pith Number

pith:6DHZLRVO

pith:2012:6DHZLRVONPGU4RH2N7SEOHI4HW

not attested not anchored not stored refs pending

Thermodynamic singularities in the entanglement entropy at a 2D quantum critical point

Jaan Oitmaa, Rajiv R. P. Singh, Roger G. Melko

arxiv:1204.1340 v1 · 2012-04-05 · cond-mat.stat-mech · 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{6DHZLRVONPGU4RH2N7SEOHI4HW}

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	2026-05-18T03:45:22.967069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0cf95c6ae6bcd4e44fa6fe4471d1c3db32cff4d78858b279393e2f323d2bb2a

Aliases

arxiv: 1204.1340 · arxiv_version: 1204.1340v1 · doi: 10.48550/arxiv.1204.1340 · pith_short_12: 6DHZLRVONPGU · pith_short_16: 6DHZLRVONPGU4RH2 · pith_short_8: 6DHZLRVO

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/6DHZLRVONPGU4RH2N7SEOHI4HW \
  | 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: f0cf95c6ae6bcd4e44fa6fe4471d1c3db32cff4d78858b279393e2f323d2bb2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76e13b172eebcf26b5910dfa0d02a0404952eb83eb06664c6a7d2685b3ae5bc6",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2012-04-05T20:00:01Z",
    "title_canon_sha256": "f65ff8cf3960c7dccd5917868a2c55e75c7a9f4a4e2a8b23f580069bd4d97bbd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1340",
    "kind": "arxiv",
    "version": 1
  }
}