Pith Number

pith:RUWP64R7

pith:2017:RUWP64R75CTH2X5VXUJ2V2LMJO

not attested not anchored not stored refs pending

e-Sem: Dynamic Seminar Management System for Primary, Secondary and Tertiary Education

Athanasios G. Triantafyllou, George F. Fragulis, Ioannis A. Skordas, Maria G. Bouliou, Nestoras Kolovos, Nikolaos Tsirekas

arxiv:1709.09409 v2 · 2017-09-27 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RUWP64R75CTH2X5VXUJ2V2LMJO}

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	2026-05-18T00:34:04.363712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d2cff723fe8a67d5fb5bd13aae96c4bbe5dc85f9674c9fed420325d0bf2a9db

Aliases

arxiv: 1709.09409 · arxiv_version: 1709.09409v2 · doi: 10.48550/arxiv.1709.09409 · pith_short_12: RUWP64R75CTH · pith_short_16: RUWP64R75CTH2X5V · pith_short_8: RUWP64R7

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/RUWP64R75CTH2X5VXUJ2V2LMJO \
  | 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: 8d2cff723fe8a67d5fb5bd13aae96c4bbe5dc85f9674c9fed420325d0bf2a9db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b118b2a1373b70a8465fa519e9990b59533bcbb7caa08e095018f844bafc2e9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2017-09-27T09:31:35Z",
    "title_canon_sha256": "18fca3daa7ef5254c38d4a8cfe9e9ded98c8ab0a5fdb1f38a11654dcd76c8211"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09409",
    "kind": "arxiv",
    "version": 2
  }
}