Pith Number

pith:SFC54RS4

pith:2018:SFC54RS4EP7JMY5MOOCIR4LSKA

not attested not anchored not stored refs pending

Need for Sleep: the Impact of a Night of Sleep Deprivation on Novice Developers' Performance

Davide Fucci, Giuseppe Scanniello, Natalia Juristo, Simone Romano

arxiv:1805.02544 v1 · 2018-05-07 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SFC54RS4EP7JMY5MOOCIR4LSKA}

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	2026-05-18T00:16:39.668384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9145de465c23fe9663ac738488f1725016480150b0d43cb995b2dab6b08f86bc

Aliases

arxiv: 1805.02544 · arxiv_version: 1805.02544v1 · doi: 10.48550/arxiv.1805.02544 · pith_short_12: SFC54RS4EP7J · pith_short_16: SFC54RS4EP7JMY5M · pith_short_8: SFC54RS4

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/SFC54RS4EP7JMY5MOOCIR4LSKA \
  | 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: 9145de465c23fe9663ac738488f1725016480150b0d43cb995b2dab6b08f86bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee3d19c0e81333e93f46a69af6202f13b684e7f7cdb44fb53cef8a83e81267c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-05-07T14:31:54Z",
    "title_canon_sha256": "8cf4fbd1bb6cf6907fcd8c05088b6b7b027cf156ad6afce2c54b5731fa4e8bfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02544",
    "kind": "arxiv",
    "version": 1
  }
}