Pith Number

pith:2HHEWR7E

pith:2019:2HHEWR7EACSZTM6U2E5AZWBLZY

not attested not anchored not stored refs pending

C0-Stability for actions implies shadowing property

Aldo Portela, Jorge Iglesias

arxiv:1908.05299 v2 · 2019-08-14 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2HHEWR7EACSZTM6U2E5AZWBLZY}

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	2026-07-05T01:43:04.688611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1ce4b47e400a599b3d4d13a0cd82bce00260add85ee0adfaaec04d66fb9f52b

Aliases

arxiv: 1908.05299 · arxiv_version: 1908.05299v2 · doi: 10.48550/arxiv.1908.05299 · pith_short_12: 2HHEWR7EACSZ · pith_short_16: 2HHEWR7EACSZTM6U · pith_short_8: 2HHEWR7E

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/2HHEWR7EACSZTM6U2E5AZWBLZY \
  | 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: d1ce4b47e400a599b3d4d13a0cd82bce00260add85ee0adfaaec04d66fb9f52b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "288ccd8e750748ee6e40529cf612cc2ed86b16b352523d75be8b1910225340a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2019-08-14T18:27:46Z",
    "title_canon_sha256": "0bbd60e0931cf7abec0dcfa09e4e32572a363a8d22958dbb12fd39025668f520"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05299",
    "kind": "arxiv",
    "version": 2
  }
}