Pith Number

pith:KXRDZNCI

pith:2015:KXRDZNCIDT363DURDFTFLNFEXQ

not attested not anchored not stored refs pending

Persistent Sharing of Fitness App Status on Twitter

Chul Lee, Ingmar Weber, Kunwoo Park, Meeyoung Cha

arxiv:1510.04049 v2 · 2015-10-14 · cs.SI

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	2026-05-18T01:30:01.702118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55e23cb4481cf7ed8e91196655b4a4bc00c564bf44b5b16b14e10693de0dffaf

Aliases

arxiv: 1510.04049 · arxiv_version: 1510.04049v2 · doi: 10.48550/arxiv.1510.04049 · pith_short_12: KXRDZNCIDT36 · pith_short_16: KXRDZNCIDT363DUR · pith_short_8: KXRDZNCI

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/KXRDZNCIDT363DURDFTFLNFEXQ \
  | 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: 55e23cb4481cf7ed8e91196655b4a4bc00c564bf44b5b16b14e10693de0dffaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa4065fbe1c9d553b42126373a0ed7082dcba80f1b8a3a0194059a3e05889365",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2015-10-14T11:37:20Z",
    "title_canon_sha256": "4fa2637148e37204b8a821ecf8cf9fc8d80459c4d93fff76b391e3da09ad131c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.04049",
    "kind": "arxiv",
    "version": 2
  }
}