Pith Number

pith:DTKTY2SF

pith:2019:DTKTY2SF6W2WB3SN5K4CZHOS5U

not attested not anchored not stored refs pending

Experiments in Social Media

Toby Walsh

arxiv:1908.09097 v1 · 2019-08-24 · cs.CY · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DTKTY2SF6W2WB3SN5K4CZHOS5U}

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	2026-07-04T23:59:36.756481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cd53c6a45f5b560ee4deab82c9dd2ed39699145942fd2dcea55bad8ec4c8053

Aliases

arxiv: 1908.09097 · arxiv_version: 1908.09097v1 · doi: 10.48550/arxiv.1908.09097 · pith_short_12: DTKTY2SF6W2W · pith_short_16: DTKTY2SF6W2WB3SN · pith_short_8: DTKTY2SF

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/DTKTY2SF6W2WB3SN5K4CZHOS5U \
  | 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: 1cd53c6a45f5b560ee4deab82c9dd2ed39699145942fd2dcea55bad8ec4c8053

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7da95eaed775c7e8acff1c6d872456246fc293b723bdddb6038715c340bc3dc1",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2019-08-24T06:01:13Z",
    "title_canon_sha256": "05f2482b86ea69f9a890177db943abaa93ccaf36bb7873d36a31b9cf6587f4c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09097",
    "kind": "arxiv",
    "version": 1
  }
}