Pith Number

pith:2QSQ24ED

pith:2021:2QSQ24EDXPTM3PD6ESCSGGKVT3

not attested not anchored not stored refs pending

Science-Software Linkage: The Challenges of Traceability between Scientific Knowledge and Software Artifacts

Christoph Treude, Hideaki Hata, Jin L.C. Guo, Raula Gaikovina Kula

arxiv:2104.05891 v1 · 2021-04-13 · cs.SE · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2QSQ24EDXPTM3PD6ESCSGGKVT3}

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	2026-07-05T02:31:26.383602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4250d7083bbe6cdbc7e24852319559ec58bfce5dcf5b308632386ca0375cd76

Aliases

arxiv: 2104.05891 · arxiv_version: 2104.05891v1 · doi: 10.48550/arxiv.2104.05891 · pith_short_12: 2QSQ24EDXPTM · pith_short_16: 2QSQ24EDXPTM3PD6 · pith_short_8: 2QSQ24ED

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/2QSQ24EDXPTM3PD6ESCSGGKVT3 \
  | 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: d4250d7083bbe6cdbc7e24852319559ec58bfce5dcf5b308632386ca0375cd76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34c67b469e18ba56771a6b585524db99fd8b01caddd5184a40fa1d1f056282f9",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2021-04-13T01:50:15Z",
    "title_canon_sha256": "6a267749ebb4c3c18e78c5b9f68c563acabbfde9022c81db3a804dc35a4d63a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05891",
    "kind": "arxiv",
    "version": 1
  }
}