Pith Number

pith:K3QY2VM5

pith:2018:K3QY2VM5CP5P32VYFSWBL57HQX

not attested not anchored not stored refs pending

A Riemann-Hilbert problem for uncoupled BPS structures

Anna Barbieri

arxiv:1802.07655 v2 · 2018-02-21 · math.AG · 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{K3QY2VM5CP5P32VYFSWBL57HQX}

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	2026-05-17T23:45:22.626199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56e18d559d13fafdeab82cac15f7e785f59e5942bc3b0b27ffa4c5dda229b3b7

Aliases

arxiv: 1802.07655 · arxiv_version: 1802.07655v2 · doi: 10.48550/arxiv.1802.07655 · pith_short_12: K3QY2VM5CP5P · pith_short_16: K3QY2VM5CP5P32VY · pith_short_8: K3QY2VM5

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/K3QY2VM5CP5P32VYFSWBL57HQX \
  | 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: 56e18d559d13fafdeab82cac15f7e785f59e5942bc3b0b27ffa4c5dda229b3b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2588eae55ccb0ad50323f385911ba71b895b37f93c405e8296fb7a9c8c802523",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-02-21T16:34:46Z",
    "title_canon_sha256": "5a1ee846c0feb874c033627a44f64dd4f647f18ccd7db3c5a61381d56d0f9668"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07655",
    "kind": "arxiv",
    "version": 2
  }
}