Pith Number

pith:RB4HUVZV

pith:2015:RB4HUVZVXMIFLHNMTPWS3QGYSJ

not attested not anchored not stored refs pending

Excitations and the tangent space of projected entangled-pair states

Frank Verstraete, Jutho Haegeman, Laurens Vanderstraeten, Micha\"el Mari\"en

arxiv:1507.02151 v2 · 2015-07-08 · cond-mat.str-el · 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{RB4HUVZVXMIFLHNMTPWS3QGYSJ}

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	2026-05-18T01:25:38.782934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88787a5735bb10559dac9bed2dc0d8926c05f2a8c5e46c61e91e5aa571902a6d

Aliases

arxiv: 1507.02151 · arxiv_version: 1507.02151v2 · doi: 10.48550/arxiv.1507.02151 · pith_short_12: RB4HUVZVXMIF · pith_short_16: RB4HUVZVXMIFLHNM · pith_short_8: RB4HUVZV

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/RB4HUVZVXMIFLHNMTPWS3QGYSJ \
  | 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: 88787a5735bb10559dac9bed2dc0d8926c05f2a8c5e46c61e91e5aa571902a6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1fedc0694baf4a81efd1aaefd06b6f37316352ddffbdf33c2ccf2c4af3125dc",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2015-07-08T13:37:14Z",
    "title_canon_sha256": "6a52ff5af5034a15c93276606c61fd5d1216e75e3c05594dd8fd2c774af6fd5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02151",
    "kind": "arxiv",
    "version": 2
  }
}