Pith Number

pith:IPFSDDYW

pith:2013:IPFSDDYWAZISLTRCUDOXPP56GW

not attested not anchored not stored refs pending

On the semi-threading of knot diagrams with minimal overpasses

Dongseok Kim, Jae-Wook Chung, Seulgi Jeong

arxiv:1302.3835 v1 · 2013-02-15 · math.GN · math.GT

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	2026-05-18T03:33:35.556590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43cb218f16065125ce22a0dd77bfbe359ef197d3c5acd6609d3b37013ca65ee8

Aliases

arxiv: 1302.3835 · arxiv_version: 1302.3835v1 · doi: 10.48550/arxiv.1302.3835 · pith_short_12: IPFSDDYWAZIS · pith_short_16: IPFSDDYWAZISLTRC · pith_short_8: IPFSDDYW

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/IPFSDDYWAZISLTRCUDOXPP56GW \
  | 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: 43cb218f16065125ce22a0dd77bfbe359ef197d3c5acd6609d3b37013ca65ee8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6214d02e8a868c23e99313a400d9b49e2e46e7d8d1f7cb1bd137c29c3a394069",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2013-02-15T18:21:58Z",
    "title_canon_sha256": "3fa2052b4db04425703dd51972594a0941c9d5fb33e516a446f5efeeba78a3df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.3835",
    "kind": "arxiv",
    "version": 1
  }
}