Pith Number

pith:PT6PALME

pith:2010:PT6PALME2MOL5SIL4GJCXP3ZAD

not attested not anchored not stored refs pending

Definitions of entanglement entropy of spin systems in the valence-bond basis

Anders W. Sandvik, Yu-Cheng Lin

arxiv:1005.0821 v2 · 2010-05-05 · 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{PT6PALME2MOL5SIL4GJCXP3ZAD}

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	2026-05-18T04:32:35.230763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cfcf02d84d31cbec90be1922bbf7900e276954f1713fd60b1187ff58e0a95ad

Aliases

arxiv: 1005.0821 · arxiv_version: 1005.0821v2 · doi: 10.48550/arxiv.1005.0821 · pith_short_12: PT6PALME2MOL · pith_short_16: PT6PALME2MOL5SIL · pith_short_8: PT6PALME

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/PT6PALME2MOL5SIL4GJCXP3ZAD \
  | 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: 7cfcf02d84d31cbec90be1922bbf7900e276954f1713fd60b1187ff58e0a95ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2b76e5aeba7390ee983ff6bbe80b3e5458422eb98666062e2133ce8a33b740e",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2010-05-05T19:33:00Z",
    "title_canon_sha256": "8f77be21e344fb4a44411f111789e69006dc39a905aeef326c788548f5d9238f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.0821",
    "kind": "arxiv",
    "version": 2
  }
}