Pith Number

pith:DDD2VNA5

pith:2018:DDD2VNA5HJSBT6N5OU326KKT3H

not attested not anchored not stored refs pending

Mathematics Content Understanding for Cyberlearning via Formula Evolution Map

Ke Yuan, Liangcai Gao, Xiaozhong Liu, Zheng Gao, Zhi Tang, Zhuoren Jiang

arxiv:1812.11786 v1 · 2018-12-31 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDD2VNA5HJSBT6N5OU326KKT3H}

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	2026-05-17T23:57:11.139655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18c7aab41d3a6419f9bd7537af2953d9deb116bc7d8e7bf171190383e3a17da0

Aliases

arxiv: 1812.11786 · arxiv_version: 1812.11786v1 · doi: 10.48550/arxiv.1812.11786 · pith_short_12: DDD2VNA5HJSB · pith_short_16: DDD2VNA5HJSBT6N5 · pith_short_8: DDD2VNA5

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/DDD2VNA5HJSBT6N5OU326KKT3H \
  | 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: 18c7aab41d3a6419f9bd7537af2953d9deb116bc7d8e7bf171190383e3a17da0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f000aabb26c4924e04b897e1e7886e0ce10c4bed1b6c6194ac699d67dcdff6d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-12-31T13:20:50Z",
    "title_canon_sha256": "492264c496a3794efc1e58be3ec4914ec3f8ee2c07ca6313ce73a443f3498fb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.11786",
    "kind": "arxiv",
    "version": 1
  }
}