Pith Number

pith:MVNUGWHP

pith:2015:MVNUGWHPVJS3R2JSGUAYOTAXJN

not attested not anchored not stored refs pending

Insufficiency of the Brauer-Manin obstruction for Enriques surfaces

Bianca Viray, Francesca Balestrieri, Jennifer Berg, Jennifer Park, Michelle Manes

arxiv:1501.04974 v1 · 2015-01-20 · math.NT · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MVNUGWHPVJS3R2JSGUAYOTAXJN}

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	2026-05-18T02:29:01.016223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

655b4358efaa65b8e9323501874c174b63dfe7e7a957d5d9da1891b6ab7b2b0b

Aliases

arxiv: 1501.04974 · arxiv_version: 1501.04974v1 · doi: 10.48550/arxiv.1501.04974 · pith_short_12: MVNUGWHPVJS3 · pith_short_16: MVNUGWHPVJS3R2JS · pith_short_8: MVNUGWHP

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/MVNUGWHPVJS3R2JSGUAYOTAXJN \
  | 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: 655b4358efaa65b8e9323501874c174b63dfe7e7a957d5d9da1891b6ab7b2b0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "283090a155affa705baa75f406ab608a18f8d7db11a66bc82a677d40c9719973",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2015-01-20T21:12:15Z",
    "title_canon_sha256": "29bb4e725ee3a40061fc7f39cd3847f36654445ec9e9e246ccc22515c4f41067"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04974",
    "kind": "arxiv",
    "version": 1
  }
}