Pith Number

pith:DGRCAXSQ

pith:2017:DGRCAXSQTY3QFJ7GJELZNCIHNF

not attested not anchored not stored refs pending

On self-dual negacirculant codes of index two and four

Minjia Shi, Patrick Sole, Qian Liqin

arxiv:1709.07546 v2 · 2017-09-22 · cs.IT · math.IT

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	2026-05-18T00:06:12.223587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19a2205e509e3702a7e649179689076959341e30820f4dea0a763a2c796758a0

Aliases

arxiv: 1709.07546 · arxiv_version: 1709.07546v2 · doi: 10.48550/arxiv.1709.07546 · pith_short_12: DGRCAXSQTY3Q · pith_short_16: DGRCAXSQTY3QFJ7G · pith_short_8: DGRCAXSQ

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/DGRCAXSQTY3QFJ7GJELZNCIHNF \
  | 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: 19a2205e509e3702a7e649179689076959341e30820f4dea0a763a2c796758a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71f6b43acccff428708cb6c98602bf4f4e5328ab2648730b1db0889570080a44",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-09-22T00:34:08Z",
    "title_canon_sha256": "de6473c9c02582a71da79a7c843e0cda1b470458259c00b999c4d49b5e3205a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07546",
    "kind": "arxiv",
    "version": 2
  }
}