Pith Number

pith:D75G6K6W

pith:2021:D75G6K6WSBBVX5Z6BSZJNWPGSA

not attested not anchored not stored refs pending

GAGA problems for the Brauer group via derived geometry

Federico Binda, Mauro Porta

arxiv:2107.03914 v2 · 2021-07-08 · math.AG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D75G6K6WSBBVX5Z6BSZJNWPGSA}

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.

Cited by

1 paper in Pith

Shifted symplectic rigidification

Receipt and verification

First computed	2026-07-05T06:02:44.274296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ffa6f2bd690435bf73e0cb296d9e690399f904e4a62fa4fdd5df758040cb4d9

Aliases

arxiv: 2107.03914 · arxiv_version: 2107.03914v2 · doi: 10.48550/arxiv.2107.03914 · pith_short_12: D75G6K6WSBBV · pith_short_16: D75G6K6WSBBVX5Z6 · pith_short_8: D75G6K6W

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/D75G6K6WSBBVX5Z6BSZJNWPGSA \
  | 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: 1ffa6f2bd690435bf73e0cb296d9e690399f904e4a62fa4fdd5df758040cb4d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d40da7ef7c9d71fe320530d5263872263dc093b7501b2a2c21369bd3f4f0b3b",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2021-07-08T15:42:23Z",
    "title_canon_sha256": "73c8583c7cf3d18ed8532a296c452649e9afd27929a4e23fe496685ba03d82f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.03914",
    "kind": "arxiv",
    "version": 2
  }
}