Pith Number

pith:DYKPW2H2

pith:2018:DYKPW2H2VNOJCALLJXQIEU7MZW

not attested not anchored not stored refs pending

On the Calculation of Fundamental Groups in Homotopy Type Theory by Means of Computational Paths

Anjolina G. de Oliveira, Arthur F. Ramos, Ruy J. G. B. de Queiroz, Tiago Mendon\c{c}a Lucena de Veras

arxiv:1804.01413 v2 · 2018-04-03 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DYKPW2H2VNOJCALLJXQIEU7MZW}

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	2026-05-18T00:15:46.425906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e14fb68faab5c91016b4de08253eccd95d74623f998e75487a0aed1f1d2dc4b

Aliases

arxiv: 1804.01413 · arxiv_version: 1804.01413v2 · doi: 10.48550/arxiv.1804.01413 · pith_short_12: DYKPW2H2VNOJ · pith_short_16: DYKPW2H2VNOJCALL · pith_short_8: DYKPW2H2

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/DYKPW2H2VNOJCALLJXQIEU7MZW \
  | 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: 1e14fb68faab5c91016b4de08253eccd95d74623f998e75487a0aed1f1d2dc4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29c9afca64b1de331defb21045c5531a7006536dffcb32fbd37e0647feb306ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-04-03T17:38:07Z",
    "title_canon_sha256": "c9afc5ded55126ef6308828ea70c862163f94819226e0cbf488e6d7747483cdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01413",
    "kind": "arxiv",
    "version": 2
  }
}