Pith Number

pith:WQZYLIDC

pith:2021:WQZYLIDCVSEUTDY6VKH3OEH7H3

not attested not anchored not stored refs pending

Harvest -- An Open Source Toolkit for Extracting Posts and Post Metadata from Web Forums

Adrian M. P. Brasoveanu, Albert Weichselbraun, Fabian Odoni, Roger Waldvogel

arxiv:2102.02240 v1 · 2021-02-03 · 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{WQZYLIDCVSEUTDY6VKH3OEH7H3}

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	2026-07-05T03:03:18.681379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b43385a062ac89498f1eaa8fb710ff3ec3e3da3c49f5dd69a32bae053854a66f

Aliases

arxiv: 2102.02240 · arxiv_version: 2102.02240v1 · doi: 10.48550/arxiv.2102.02240 · pith_short_12: WQZYLIDCVSEU · pith_short_16: WQZYLIDCVSEUTDY6 · pith_short_8: WQZYLIDC

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/WQZYLIDCVSEUTDY6VKH3OEH7H3 \
  | 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: b43385a062ac89498f1eaa8fb710ff3ec3e3da3c49f5dd69a32bae053854a66f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0562d19472501975692298cdf88c84d0f96dc00ca66aadc08be447216578cf5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-02-03T19:20:31Z",
    "title_canon_sha256": "78cf524484962efe6bb7c07fd6612a6334a1dec4a4840bf26adc0083addf3007"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.02240",
    "kind": "arxiv",
    "version": 1
  }
}