Pith Number

pith:TPY6J3PQ

pith:2026:TPY6J3PQPOC7FDBLKLXADYFV4B

not attested not anchored not stored refs pending

Penalty-free quantum optimization applied to lattice protein folding

Anders Irb\"ack, Leif Gellsersen, Lucas Knuthson, Stefan Prestel

arxiv:2606.02104 v1 · 2026-06-01 · quant-ph · physics.bio-ph · physics.comp-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{TPY6J3PQPOC7FDBLKLXADYFV4B}

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	2026-06-02T02:05:06.607863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bf1e4edf07b85f28c2b52ee01e0b5e04e2e3fabd782626fd0952ef7187b3191

Aliases

arxiv: 2606.02104 · arxiv_version: 2606.02104v1 · doi: 10.48550/arxiv.2606.02104 · pith_short_12: TPY6J3PQPOC7 · pith_short_16: TPY6J3PQPOC7FDBL · pith_short_8: TPY6J3PQ

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/TPY6J3PQPOC7FDBLKLXADYFV4B \
  | 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: 9bf1e4edf07b85f28c2b52ee01e0b5e04e2e3fabd782626fd0952ef7187b3191

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50f0c56e59797f4747a921530cd1720d9d383c3cafc874f73fdedc6aa9d1f96c",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-01T11:34:07Z",
    "title_canon_sha256": "18514075162c008761c02946cf3457ec31bc6c1be51a28326c84f51c5ebc144d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.02104",
    "kind": "arxiv",
    "version": 1
  }
}