Pith Number

pith:V2AOJFOE

pith:2015:V2AOJFOEINKANH5URH2M2ZZEVQ

not attested not anchored not stored refs pending

An Almost Contact Structure on $G_2$-Manifolds

Albert J. Todd

arxiv:1501.06966 v1 · 2015-01-28 · math.DG · hep-th · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V2AOJFOEINKANH5URH2M2ZZEVQ}

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	2026-05-18T02:28:30.688461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae80e495c44354069fb489f4cd6724ac1060178adccd03643e30489fd4095f18

Aliases

arxiv: 1501.06966 · arxiv_version: 1501.06966v1 · doi: 10.48550/arxiv.1501.06966 · pith_short_12: V2AOJFOEINKA · pith_short_16: V2AOJFOEINKANH5U · pith_short_8: V2AOJFOE

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/V2AOJFOEINKANH5URH2M2ZZEVQ \
  | 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: ae80e495c44354069fb489f4cd6724ac1060178adccd03643e30489fd4095f18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "025eaca4ddabbb6ef1491fe2354e389744e74a1bf3d210a40cb137d1543c699e",
    "cross_cats_sorted": [
      "hep-th",
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-01-28T01:09:41Z",
    "title_canon_sha256": "022d4320f3bb9e12075ac46fc040fffaa6939bef14912080646c4e015fb83dd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.06966",
    "kind": "arxiv",
    "version": 1
  }
}