Pith Number

pith:NWP3D2JO

pith:2014:NWP3D2JOVPJXPP7VKQPKBEBI7U

not attested not anchored not stored refs pending

On the u-Invariant of Function Fields of Curves Over Complete Discretely Valued Fields

R. Parimala, V. Suresh

arxiv:1404.3386 v1 · 2014-04-13 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NWP3D2JOVPJXPP7VKQPKBEBI7U}

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	2026-05-18T02:54:15.286081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d9fb1e92eabd377bff5541ea09028fd06a1fb4bdc4a81a115b4d17576a11723

Aliases

arxiv: 1404.3386 · arxiv_version: 1404.3386v1 · doi: 10.48550/arxiv.1404.3386 · pith_short_12: NWP3D2JOVPJX · pith_short_16: NWP3D2JOVPJXPP7V · pith_short_8: NWP3D2JO

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/NWP3D2JOVPJXPP7VKQPKBEBI7U \
  | 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: 6d9fb1e92eabd377bff5541ea09028fd06a1fb4bdc4a81a115b4d17576a11723

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57ab56169e4f3039392b1a33b82dab807821e08f1a887f1eb3a84945391fecb8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2014-04-13T14:32:17Z",
    "title_canon_sha256": "7255459dde27fc06d83e4aa1b54cc782b73e2f1524064233681ac02d0cd803ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3386",
    "kind": "arxiv",
    "version": 1
  }
}