Pith Number

pith:7DETRYS7

pith:2012:7DETRYS7B5R7NUIJDUXTUF5OT6

not attested not anchored not stored refs pending

Frustration free gapless Hamiltonians for Matrix Product States

Carlos Fern\'andez-Gonz\'alez, David P\'erez-Garc\'ia, J. Ignacio Cirac, Michael M. Wolf, Norbert Schuch

arxiv:1210.6613 v2 · 2012-10-24 · quant-ph · cond-mat.str-el

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7DETRYS7B5R7NUIJDUXTUF5OT6}

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	2026-05-18T02:30:08.746286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8c938e25f0f63f6d1091d2f3a17ae9fa2ccaa3a3665d3f5e51da5d7f6a37c4e

Aliases

arxiv: 1210.6613 · arxiv_version: 1210.6613v2 · doi: 10.48550/arxiv.1210.6613 · pith_short_12: 7DETRYS7B5R7 · pith_short_16: 7DETRYS7B5R7NUIJ · pith_short_8: 7DETRYS7

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/7DETRYS7B5R7NUIJDUXTUF5OT6 \
  | 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: f8c938e25f0f63f6d1091d2f3a17ae9fa2ccaa3a3665d3f5e51da5d7f6a37c4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df53be605a466a311b01e503db13414ea9822a072c1fb047be2345ba7b69bd51",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-10-24T17:37:17Z",
    "title_canon_sha256": "afde11a99393cc78034d58c9d43a06d4e07df51d9b07909f6c3ce676b2d62e70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6613",
    "kind": "arxiv",
    "version": 2
  }
}