Pith Number

pith:FREOBQQT

pith:2016:FREOBQQTXFJ27JGF2ZLKJ3VJT3

not attested not anchored not stored refs pending

Estructuras de grupo topol\'ogico en (Z,+)

Daniel de la Barrera Mayoral, Elena Mart\'in Peinador

arxiv:1603.04695 v1 · 2016-03-12 · math.GN · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FREOBQQTXFJ27JGF2ZLKJ3VJT3}

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	2026-05-18T01:19:04.166652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c48e0c213b953afa4c5d656a4eea99ed5e063ef0b730f159007fa5a7d2af0dd

Aliases

arxiv: 1603.04695 · arxiv_version: 1603.04695v1 · doi: 10.48550/arxiv.1603.04695 · pith_short_12: FREOBQQTXFJ2 · pith_short_16: FREOBQQTXFJ27JGF · pith_short_8: FREOBQQT

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/FREOBQQTXFJ27JGF2ZLKJ3VJT3 \
  | 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: 2c48e0c213b953afa4c5d656a4eea99ed5e063ef0b730f159007fa5a7d2af0dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1b9ce9772ff81eef6788a39719f01c2e7de8f8827cb04a3b75652da9023c96d",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2016-03-12T11:20:42Z",
    "title_canon_sha256": "e5eb9829123a328ceccde03d2b321c7fa792a3dfbad07df9e1f6006f34f2aa28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.04695",
    "kind": "arxiv",
    "version": 1
  }
}