Pith Number

pith:NRVL3CJC

pith:2020:NRVL3CJCWEWEL5OOX3GDMCHDWX

not attested not anchored not stored refs pending

Efficient Algorithms for Approximating Quantum Partition Functions

Ryan L. Mann, Tyler Helmuth

arxiv:2004.11568 v2 · 2020-04-24 · cs.DS · cs.CC · math.CO · 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{NRVL3CJCWEWEL5OOX3GDMCHDWX}

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	2026-07-05T02:11:00.375093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c6abd8922b12c45f5cebecc3608e3b5ed5021044c047bf5bb50e5cd9a97c66a

Aliases

arxiv: 2004.11568 · arxiv_version: 2004.11568v2 · doi: 10.48550/arxiv.2004.11568 · pith_short_12: NRVL3CJCWEWE · pith_short_16: NRVL3CJCWEWEL5OO · pith_short_8: NRVL3CJC

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/NRVL3CJCWEWEL5OOX3GDMCHDWX \
  | 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: 6c6abd8922b12c45f5cebecc3608e3b5ed5021044c047bf5bb50e5cd9a97c66a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f41c9a46c6db45b7ee5d4d65594470aceba966b88388b6f3e313cd06e00c9063",
    "cross_cats_sorted": [
      "cs.CC",
      "math.CO",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2020-04-24T07:21:43Z",
    "title_canon_sha256": "21f5a0f2959303d44feb09ae2680d3d0f3cb89ed54db8ee02fa9cf636cdb14f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.11568",
    "kind": "arxiv",
    "version": 2
  }
}