Pith Number

pith:GQAJZDI5

pith:2017:GQAJZDI5RDFYERYPZCBCNWZOCL

not attested not anchored not stored refs pending

Julia Robinson numbers and arithmetical dynamic of quadratic polynomials

Carlos R. Videla, Marianela Castillo Fern\'andez, Xavier Vidaux

arxiv:1711.00490 v1 · 2017-11-01 · 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{GQAJZDI5RDFYERYPZCBCNWZOCL}

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	2026-05-18T00:31:30.475797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34009c8d1d88cb82470fc88226db2e12e8f279802b70d3134fef80acd4e921b6

Aliases

arxiv: 1711.00490 · arxiv_version: 1711.00490v1 · doi: 10.48550/arxiv.1711.00490 · pith_short_12: GQAJZDI5RDFY · pith_short_16: GQAJZDI5RDFYERYP · pith_short_8: GQAJZDI5

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/GQAJZDI5RDFYERYPZCBCNWZOCL \
  | 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: 34009c8d1d88cb82470fc88226db2e12e8f279802b70d3134fef80acd4e921b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed030c1869e4d3687756131d813ead6344ef985af83ef1be0148cbb294c9128e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2017-11-01T18:06:21Z",
    "title_canon_sha256": "1326308a53808a8bb187501145df70c1d2838761a538e88dd74118a19cc9880e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.00490",
    "kind": "arxiv",
    "version": 1
  }
}