Pith Number

pith:3L645YA3

pith:2009:3L645YA3L6FCEUIE7KVNYGNZSP

not attested not anchored not stored refs pending

An introduction to effective low-energy Hamiltonians in condensed matter physics and chemistry

B. J. Powell

arxiv:0906.1640 v7 · 2009-06-09 · physics.chem-ph · cond-mat.quant-gas · cond-mat.stat-mech · 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{3L645YA3L6FCEUIE7KVNYGNZSP}

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.

Cited by

1 paper in Pith

Learning by Confusion: The Phase Diagram of the Holstein Model

Receipt and verification

First computed	2026-05-18T01:05:13.114522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dafdcee01b5f8a225104faaadc19b993dcccf78857ebf594b70373422d533d65

Aliases

arxiv: 0906.1640 · arxiv_version: 0906.1640v7 · doi: 10.48550/arxiv.0906.1640 · pith_short_12: 3L645YA3L6FC · pith_short_16: 3L645YA3L6FCEUIE · pith_short_8: 3L645YA3

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/3L645YA3L6FCEUIE7KVNYGNZSP \
  | 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: dafdcee01b5f8a225104faaadc19b993dcccf78857ebf594b70373422d533d65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bb7c6f6c5be51f4a71582507d2d4e0618ca64ad047ecbd34999af0d727b27c2",
    "cross_cats_sorted": [
      "cond-mat.quant-gas",
      "cond-mat.stat-mech",
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2009-06-09T06:12:03Z",
    "title_canon_sha256": "29db5bcce1fcee87d858d5b8a0dfcaaeeb67404793eb5275358b3209578418e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.1640",
    "kind": "arxiv",
    "version": 7
  }
}