Pith Number

pith:TC7HJJ6H

pith:2011:TC7HJJ6HRIUWGGRRPAEIEGCW2C

not attested not anchored not stored refs pending

Deformations of nearly parallel G_2-structures

Bogdan Alexandrov, Uwe Semmelmann

arxiv:1101.2143 v1 · 2011-01-11 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TC7HJJ6HRIUWGGRRPAEIEGCW2C}

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	2026-05-18T04:31:50.787337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98be74a7c78a29631a317808821856d08790adb2b20640c6a16fa16a5c36fbda

Aliases

arxiv: 1101.2143 · arxiv_version: 1101.2143v1 · doi: 10.48550/arxiv.1101.2143 · pith_short_12: TC7HJJ6HRIUW · pith_short_16: TC7HJJ6HRIUWGGRR · pith_short_8: TC7HJJ6H

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/TC7HJJ6HRIUWGGRRPAEIEGCW2C \
  | 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: 98be74a7c78a29631a317808821856d08790adb2b20640c6a16fa16a5c36fbda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c5e0c238d19cb9f8ba281a30f4f561bd09c5631dd92406b9c4dd471250cebcc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-01-11T15:29:21Z",
    "title_canon_sha256": "730611f977d9f0bbde52fb23d2021bc55bfd27dd28373ae091b88e774e4d1ddc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2143",
    "kind": "arxiv",
    "version": 1
  }
}