Pith Number

pith:OK4RYQL4

pith:2019:OK4RYQL43QPGU6HTAD4G633KZ5

not attested not anchored not stored refs pending

Length-constrained curve diffusion

Glen Wheeler, James McCoy, Yuhan Wu

arxiv:1901.07128 v1 · 2019-01-22 · math.DG

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

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	2026-05-17T23:55:48.074105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72b91c417cdc1e6a78f300f86f6f6acf738e4897bf39b49840d0c9339a84c663

Aliases

arxiv: 1901.07128 · arxiv_version: 1901.07128v1 · doi: 10.48550/arxiv.1901.07128 · pith_short_12: OK4RYQL43QPG · pith_short_16: OK4RYQL43QPGU6HT · pith_short_8: OK4RYQL4

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/OK4RYQL43QPGU6HTAD4G633KZ5 \
  | 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: 72b91c417cdc1e6a78f300f86f6f6acf738e4897bf39b49840d0c9339a84c663

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45d6ce6e342f4d7e53f5441c367c4ed0943f4fe801da3b6aa1e33631a8c723c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-01-22T00:27:37Z",
    "title_canon_sha256": "6b37c44e950cac94554c23e607a621459f0fb0133b0fc89c05fad67ad88b3226"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.07128",
    "kind": "arxiv",
    "version": 1
  }
}