Pith Number

pith:Q6J5PHC3

pith:1999:Q6J5PHC3NI4L7NKXLZBW4V77PX

not attested not anchored not stored refs pending

How localized is an extended quantum system ?

(2) Centro At\'omico Bariloche, A.A. Aligia (2) ((1) Theoretical Division, Argentina), G. Ortiz (1), Los Alamos National Laboratory

arxiv:cond-mat/9910490 v4 · 1999-10-29 · cond-mat

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q6J5PHC3NI4L7NKXLZBW4V77PX}

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	2026-05-18T01:39:27.122258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8793d79c5b6a38bfb5575e436e57ff7df1c69a9063ada6abf6a549ddc7b2f7c6

Aliases

arxiv: cond-mat/9910490 · arxiv_version: cond-mat/9910490v4 · doi: 10.48550/arxiv.cond-mat/9910490 · pith_short_12: Q6J5PHC3NI4L · pith_short_16: Q6J5PHC3NI4L7NKX · pith_short_8: Q6J5PHC3

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/Q6J5PHC3NI4L7NKXLZBW4V77PX \
  | 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: 8793d79c5b6a38bfb5575e436e57ff7df1c69a9063ada6abf6a549ddc7b2f7c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "181031d2d973351563cc50a8fecacb6974b34d902d6038fa3525395935948681",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat",
    "submitted_at": "1999-10-29T15:13:56Z",
    "title_canon_sha256": "0b32d751a0fd26d58d3f9a101a7b0457228e6fa63de04c3b6ebf59eec65937e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9910490",
    "kind": "arxiv",
    "version": 4
  }
}