Pith Number

pith:OCWAUKW5

pith:2017:OCWAUKW5Q53BTCGFARPYF32ECF

not attested not anchored not stored refs pending

A note on the Almansi property

Andrea Ratto, Stefano Montaldo

arxiv:1708.09363 v1 · 2017-08-30 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OCWAUKW5Q53BTCGFARPYF32ECF}

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	2026-05-18T00:36:20.062076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70ac0a2add87761988c5045f82ef441155bdeef800f712ad11c970c2e6f27193

Aliases

arxiv: 1708.09363 · arxiv_version: 1708.09363v1 · doi: 10.48550/arxiv.1708.09363 · pith_short_12: OCWAUKW5Q53B · pith_short_16: OCWAUKW5Q53BTCGF · pith_short_8: OCWAUKW5

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/OCWAUKW5Q53BTCGFARPYF32ECF \
  | 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: 70ac0a2add87761988c5045f82ef441155bdeef800f712ad11c970c2e6f27193

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "667bf3190652f8c9d1d5d0c5a5bcf924271434c69102f59ec99a4169dc42e51f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-08-30T16:54:09Z",
    "title_canon_sha256": "1c8fd14838178b78adb6a9c93d38d9a86fd5731c20ffdae76e01aadcfb871a00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.09363",
    "kind": "arxiv",
    "version": 1
  }
}