Pith Number

pith:6XLS4TFN

pith:2012:6XLS4TFNRA3SZZJOZKGP7ADWAE

not attested not anchored not stored refs pending

Remark on the coherent information saturating its upper bound

Lin Zhang

arxiv:1208.5101 v2 · 2012-08-25 · 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{6XLS4TFNRA3SZZJOZKGP7ADWAE}

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	2026-05-18T03:42:13.055709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5d72e4cad88372ce52eca8cff8076010826f3f6e28663bebe10a68ae2873619

Aliases

arxiv: 1208.5101 · arxiv_version: 1208.5101v2 · doi: 10.48550/arxiv.1208.5101 · pith_short_12: 6XLS4TFNRA3S · pith_short_16: 6XLS4TFNRA3SZZJO · pith_short_8: 6XLS4TFN

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/6XLS4TFNRA3SZZJOZKGP7ADWAE \
  | 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: f5d72e4cad88372ce52eca8cff8076010826f3f6e28663bebe10a68ae2873619

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e4403a656f25a5ab5048409aff5c22a51867075743df4ed809b5f53ae31665b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-08-25T05:26:15Z",
    "title_canon_sha256": "724d6c1ce7636ed8ee5114006798a297ffcca5fb3d8f83cee19e0b2eace96349"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.5101",
    "kind": "arxiv",
    "version": 2
  }
}