Pith Number

pith:6N5WQIH5

pith:2019:6N5WQIH5U37V5AESFSRDQJB254

not attested not anchored not stored refs pending

Magnetic Skyrmions coupled to fermions

I. Perapechka, Ya. Shnir

arxiv:1901.06925 v1 · 2019-01-21 · 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{6N5WQIH5U37V5AESFSRDQJB254}

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	2026-05-17T23:43:37.278050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f37b6820fda6ff5e80922ca238243aef3064748d8d9a00819d74cda854198332

Aliases

arxiv: 1901.06925 · arxiv_version: 1901.06925v1 · doi: 10.48550/arxiv.1901.06925 · pith_short_12: 6N5WQIH5U37V · pith_short_16: 6N5WQIH5U37V5AES · pith_short_8: 6N5WQIH5

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/6N5WQIH5U37V5AESFSRDQJB254 \
  | 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: f37b6820fda6ff5e80922ca238243aef3064748d8d9a00819d74cda854198332

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "404034f59066a37a129e7d2c06e9d84444b8366854cdc920720e2dedd997d120",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-01-21T13:28:46Z",
    "title_canon_sha256": "d8e2f534d0839083c65294ca9a5be3041cbf86b659b3d7ada9844e79cefec0be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06925",
    "kind": "arxiv",
    "version": 1
  }
}