Pith Number

pith:IUFHNKIK

pith:2019:IUFHNKIKK4MECK2PLRZWHUPFCZ

not attested not anchored not stored refs pending

GeoGebra e situa\c{c}\~oes que envolvem modela\c{c}\~ao numa abordagem STEAM

A. E. S. Trocado, A. P. Silveira, J. M. D. S. Dos Santos

arxiv:1907.02099 v1 · 2019-07-03 · math.HO · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IUFHNKIKK4MECK2PLRZWHUPFCZ}

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	2026-05-17T23:41:29.911995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

450a76a90a5718412b4f5c7363d1e51655537b7d5f3cf946e6f348f4c678c103

Aliases

arxiv: 1907.02099 · arxiv_version: 1907.02099v1 · doi: 10.48550/arxiv.1907.02099 · pith_short_12: IUFHNKIKK4ME · pith_short_16: IUFHNKIKK4MECK2P · pith_short_8: IUFHNKIK

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/IUFHNKIKK4MECK2PLRZWHUPFCZ \
  | 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: 450a76a90a5718412b4f5c7363d1e51655537b7d5f3cf946e6f348f4c678c103

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df11e110246d596b38c9677c0d1b0b04c44d78c3a6e56305221de394f6d05b1d",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2019-07-03T18:50:02Z",
    "title_canon_sha256": "611aa993f90d1ec6c800da53edbf1db4b960dba57d529db489f2d4e4becfaa0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02099",
    "kind": "arxiv",
    "version": 1
  }
}