Pith Number

pith:QFJJSADM

pith:2020:QFJJSADMDJSFMSNWQEMFRKVB5U

not attested not anchored not stored refs pending

TaskTracker-tool: a Toolkit for Tracking of Code Snapshots and Activity Data During Solution of Programming Tasks

Anastasiia Birillo, Elena Lyulina, Timofey Bryksin, Vladimir Kovalenko

arxiv:2012.05085 v1 · 2020-12-09 · 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{QFJJSADMDJSFMSNWQEMFRKVB5U}

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	2026-07-05T01:58:18.692229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

815299006c1a645649b6811858aaa1ed397766c0a41db7d58a6707b70ebf842f

Aliases

arxiv: 2012.05085 · arxiv_version: 2012.05085v1 · doi: 10.48550/arxiv.2012.05085 · pith_short_12: QFJJSADMDJSF · pith_short_16: QFJJSADMDJSFMSNW · pith_short_8: QFJJSADM

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/QFJJSADMDJSFMSNWQEMFRKVB5U \
  | 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: 815299006c1a645649b6811858aaa1ed397766c0a41db7d58a6707b70ebf842f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40eb6806a47fbad3e6cddeb73950dbd17050d8bea76b275a1bec84675176ea7d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2020-12-09T14:39:58Z",
    "title_canon_sha256": "a88ca594af475e019a5d3276eecf2b484ba03da2a2af2f741a70c3da5eb5639e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.05085",
    "kind": "arxiv",
    "version": 1
  }
}