Pith Number

pith:GNJAEU2X

pith:2008:GNJAEU2X3XQNLS4OOLWRGP5A5O

not attested not anchored not stored refs pending

Observation of magnetic field lines in the vicinity of a superconductor with the naked eye

Yoshihiko Saito

arxiv:0805.3990 v4 · 2008-05-26 · physics.gen-ph · physics.pop-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{GNJAEU2X3XQNLS4OOLWRGP5A5O}

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	2026-05-18T03:20:36.496939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3352025357dde0d5cb8e72ed133fa0ebab2e9c5d05d5a79866c57ab23912ca05

Aliases

arxiv: 0805.3990 · arxiv_version: 0805.3990v4 · doi: 10.48550/arxiv.0805.3990 · pith_short_12: GNJAEU2X3XQN · pith_short_16: GNJAEU2X3XQNLS4O · pith_short_8: GNJAEU2X

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/GNJAEU2X3XQNLS4OOLWRGP5A5O \
  | 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: 3352025357dde0d5cb8e72ed133fa0ebab2e9c5d05d5a79866c57ab23912ca05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0567572c121b30328abb2396acd5b214e9fcf60092262a8a521dd84fbf43687c",
    "cross_cats_sorted": [
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2008-05-26T17:05:21Z",
    "title_canon_sha256": "7bcfb24a118b3520483f0cb670e540f3c053df1ddfdd406937246a7a7ec50006"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.3990",
    "kind": "arxiv",
    "version": 4
  }
}