Pith Number

pith:Z6ZBZP7D

pith:2012:Z6ZBZP7DT5IMEWMUNJV6UHQ3VZ

not attested not anchored not stored refs pending

A comparison algorithm to check LTSA Layer 1 and SCORM compliance in e-Learning sites

Nilanjan Banerjee, Saurabh Pal, Souvik Sengupta

arxiv:1201.3981 v1 · 2012-01-19 · cs.OH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z6ZBZP7DT5IMEWMUNJV6UHQ3VZ}

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	2026-05-18T04:04:16.276013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfb21cbfe39f50c259946a6bea1e1bae7ba2fdfdf72ddd2aea12ef464cb7292a

Aliases

arxiv: 1201.3981 · arxiv_version: 1201.3981v1 · doi: 10.48550/arxiv.1201.3981 · pith_short_12: Z6ZBZP7DT5IM · pith_short_16: Z6ZBZP7DT5IMEWMU · pith_short_8: Z6ZBZP7D

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/Z6ZBZP7DT5IMEWMUNJV6UHQ3VZ \
  | 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: cfb21cbfe39f50c259946a6bea1e1bae7ba2fdfdf72ddd2aea12ef464cb7292a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f15badd2005d7da5ebdfb01230d66e23d55b779d17ab96b470f7dfad37fd7102",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.OH",
    "submitted_at": "2012-01-19T07:10:52Z",
    "title_canon_sha256": "3b6919984774f512c1b12d10567b71aa25a13f167e9e071d554ce6aabccd8eb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3981",
    "kind": "arxiv",
    "version": 1
  }
}