Pith Number

pith:PCOTDNRA

pith:1998:PCOTDNRAE5DCYBKYBACM2LLDFW

not attested not anchored not stored refs pending

Impurity corrections to the thermodynamics in spin chains using a transfer-matrix DMRG method

Sebastian Eggert, Stefan Rommer

arxiv:cond-mat/9812001 v1 · 1998-12-01 · 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{PCOTDNRAE5DCYBKYBACM2LLDFW}

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	2026-07-04T16:08:39.398613Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

789d31b62027462c05580804cd2d632d871fa59f5bd94c86600aa36cbd31db32

Aliases

arxiv: cond-mat/9812001 · arxiv_version: cond-mat/9812001v1 · doi: 10.48550/arxiv.cond-mat/9812001 · pith_short_12: PCOTDNRAE5DC · pith_short_16: PCOTDNRAE5DCYBKY · pith_short_8: PCOTDNRA

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/PCOTDNRAE5DCYBKYBACM2LLDFW \
  | 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: 789d31b62027462c05580804cd2d632d871fa59f5bd94c86600aa36cbd31db32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8afa88c09e65ea364e75f8e3bb4193de0844be8ca1fbe3a71418c4b0b83a9ba2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "1998-12-01T01:08:00Z",
    "title_canon_sha256": "9affc93a1930a94bd6f872d5452ddb7089df229c2149245f6fbb7d0c09f2aa32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9812001",
    "kind": "arxiv",
    "version": 1
  }
}