Pith Number

pith:NVJWASGP

pith:2020:NVJWASGPRZPVJZZOBPUBLRFKBB

not attested not anchored not stored refs pending

Improving time use measurement with personal big data collection -- the experience of the European Big Data Hackathon 2019

Britta Gauckler, Fernando Reis Fausto Giunchiglia, Ivano Bison, Mattia Zeni

arxiv:2004.11940 v1 · 2020-04-24 · 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{NVJWASGPRZPVJZZOBPUBLRFKBB}

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	2026-07-05T00:58:10.848802Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d536048cf8e5f54e72e0be815c4aa085510139dbcf01e53a6da9f6df9fa9e89

Aliases

arxiv: 2004.11940 · arxiv_version: 2004.11940v1 · doi: 10.48550/arxiv.2004.11940 · pith_short_12: NVJWASGPRZPV · pith_short_16: NVJWASGPRZPVJZZO · pith_short_8: NVJWASGP

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/NVJWASGPRZPVJZZOBPUBLRFKBB \
  | 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: 6d536048cf8e5f54e72e0be815c4aa085510139dbcf01e53a6da9f6df9fa9e89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4b19db1c188a5f67acb654d0530c8a1bca9cf5be2b371285c2f45072f8ffed5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2020-04-24T18:40:08Z",
    "title_canon_sha256": "0193ee04759b21e16e6213372d01cde5bfcf2f7d4157eb259971b1a1040a5547"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.11940",
    "kind": "arxiv",
    "version": 1
  }
}