Pith Number

pith:Y4SLLM7U

pith:2014:Y4SLLM7UY4GNNKWWGJHUUCX66Z

not attested not anchored not stored refs pending

On Three Generalizations of Contraction

Eduardo D. Sontag, Michael Margaliot, Tamir Tuller

arxiv:1406.1474 v1 · 2014-06-05 · 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{Y4SLLM7UY4GNNKWWGJHUUCX66Z}

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	2026-05-18T02:50:23.216957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c724b5b3f4c70cd6aad6324f4a0afef651f9e30f52e1e0e2d5d4c39489a6bedf

Aliases

arxiv: 1406.1474 · arxiv_version: 1406.1474v1 · doi: 10.48550/arxiv.1406.1474 · pith_short_12: Y4SLLM7UY4GN · pith_short_16: Y4SLLM7UY4GNNKWW · pith_short_8: Y4SLLM7U

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/Y4SLLM7UY4GNNKWWGJHUUCX66Z \
  | 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: c724b5b3f4c70cd6aad6324f4a0afef651f9e30f52e1e0e2d5d4c39489a6bedf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ead2b466e1b22e24773789490ec0011e15c3feedae476a46103adc0667be3b71",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2014-06-05T18:44:25Z",
    "title_canon_sha256": "1bc6c95d340bfdb62893678e5701ff9843b186069ded49aa0b769e5ccf69eebc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.1474",
    "kind": "arxiv",
    "version": 1
  }
}