Pith Number

pith:B5PIQAMN

pith:2025:B5PIQAMNGMVYJYRWYA5DVZRVX7

not attested not anchored not stored refs pending

On U-Folds and Their Construction

Marcelo Oyarzo, Mario Trigiante, Ruggero Noris, Stefano Maurelli

arxiv:2504.21590 v1 · 2025-04-30 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B5PIQAMNGMVYJYRWYA5DVZRVX7}

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	2026-07-05T10:56:26.538629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f5e88018d332b84e236c03a3ae635bfe454d6ac05ecce21a6151efc5db75959

Aliases

arxiv: 2504.21590 · arxiv_version: 2504.21590v1 · doi: 10.48550/arxiv.2504.21590 · pith_short_12: B5PIQAMNGMVY · pith_short_16: B5PIQAMNGMVYJYRW · pith_short_8: B5PIQAMN

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/B5PIQAMNGMVYJYRWYA5DVZRVX7 \
  | 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: 0f5e88018d332b84e236c03a3ae635bfe454d6ac05ecce21a6151efc5db75959

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b363f5029594593aad34ba6173fa9b3695dd6e6b217d2b58507c05728fb0884d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2025-04-30T12:47:14Z",
    "title_canon_sha256": "d1c8467ff19ce4e3ce5cde47e2618a2068e58a3ea1a1544c05261a9d0a53cf3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.21590",
    "kind": "arxiv",
    "version": 1
  }
}