Pith Number

pith:DIYDHIRC

pith:2012:DIYDHIRC7JVE2ZQVISPK7VEWDM

not attested not anchored not stored refs pending

Harnessing Folksonomies for Resource Classification

Arkaitz Zubiaga

arxiv:1204.6521 v1 · 2012-04-29 · cs.DL · cs.IR · 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{DIYDHIRC7JVE2ZQVISPK7VEWDM}

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	2026-05-18T03:56:44.558709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a3033a222fa6a4d6615449eafd4961b074c15493cc2b5fcbc5d5175f5fb1db8

Aliases

arxiv: 1204.6521 · arxiv_version: 1204.6521v1 · doi: 10.48550/arxiv.1204.6521 · pith_short_12: DIYDHIRC7JVE · pith_short_16: DIYDHIRC7JVE2ZQV · pith_short_8: DIYDHIRC

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/DIYDHIRC7JVE2ZQVISPK7VEWDM \
  | 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: 1a3033a222fa6a4d6615449eafd4961b074c15493cc2b5fcbc5d5175f5fb1db8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72c9084065a670875a4eb22fb632aa005cb7bd5299557d69d82cd980686cfb2f",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.SI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2012-04-29T21:11:05Z",
    "title_canon_sha256": "069edbda1610983ebb4783fbf10b50837aef6201bdff8cec69bed0135fda6d58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6521",
    "kind": "arxiv",
    "version": 1
  }
}