Pilot systematic review dataset for BaseRef validation: blockchain and smart contracts in the circular economy

Pilot systematic review dataset for BaseRef validation:blockchain and smart contracts in the circular economy======================================================= This dataset supports the validation of BaseRef (https://baseref.com.br), anopen-source web system for conducting systematic literature reviews followingthe PRISMA 2020 protocol. Software archived at:https://doi.org/10.5281/zenodo.21119457 It is the dataset underlying the pilot review reported in the associatedMethodsX article. FILES-----1. PRISMA-SLR_Revisao_sistema_blockchain_Scopus.csv Records retrieved from Scopus that remained after duplicate removal (138 records), with screening status and exclusion reason for each. 2. PRISMA-SLR_Revisao_sistema_blockchain_Web_of_Science.csv Records retrieved from Web of Science that remained after duplicate removal (29 records), with screening status and exclusion reason for each. Both files share the same 19 columns: ID, title, authors, year, journal,volume, issue, pages, DOI, ISSN, document type, language, publisher, citationcount, open access indicator, source database, status, keywords and abstract.Together they constitute the 167 unique records that entered title/abstractscreening, of which 20 are marked as included. REVIEW PROTOCOL---------------Reporting protocol : PRISMA 2020 (Page et al., 2021, BMJ 372:n71)Conducted in : BaseRef v1.0.0 (https://doi.org/10.5281/zenodo.21119457)Reviewers : 1 (single-reviewer screening; Cohen's kappa not applicable and not reported) DATABASES AND COVERAGE----------------------Scopus : searched 25 April 2026Web of Science : searched 25 April 2026Publication window : 2019-2026Export format : BibTeX SEARCH STRING (Scopus syntax, field TITLE-ABS-KEY)--------------------------------------------------TITLE-ABS-KEY ( ( "blockchain" OR "distributed ledger" ) AND ( "tokeniz*" OR "token" OR "NFT" OR "smart contract*" ) AND ( "circular economy" OR "waste management" OR "recycling" OR "supply chain sustainab*" ) ) Equivalent string executed in Web of Science (field TS = Topic): TS = ( ( "blockchain" OR "distributed ledger" ) AND ( "tokeniz*" OR "token" OR "NFT" OR "smart contract*" ) AND ( "circular economy" OR "waste management" OR "recycling" OR "supply chain sustainab*" ) ) Note on wildcards: the asterisk is interpreted as a wildcard inside doublequotation marks in both databases. In Scopus, double quotation marks denote aloose phrase in which wildcards are searched as wildcards and plural forms areincluded (Scopus Search Guide, Elsevier). FILTERS APPLIED AT THE DATABASE LEVEL-------------------------------------Years : 2019-2026Subject area : limited to Computer Science, Engineering, Environmental Science and Energy (Scopus subject area refine panel)Document types: limited to Article, Conference Paper, Review and Conference ReviewLanguages : no language filter applied at the database level; non-eligible language handled at screening (criterion E7) RECORDS RETRIEVED-----------------Scopus 140Web of Science 84 ----Total identified 224Duplicates confirmed and removed -57 (exact DOI matching and title similarity at the 85% threshold; all pairs manually confirmed) ----Unique records screened 167Excluded at title/abstract -130 ----Full texts assessed 37Excluded at eligibility -17 (8 full text unavailable; 6 insufficient data; 2 methodological inadequacy; 1 does not address the research question) ----Studies included in the synthesis 20 The 224 identified records and the 57 confirmed duplicate pairs are reportedhere for completeness but are not reconstructible from the two files in thisversion, which begin at the post-deduplication stage of 167 records. INCLUSION CRITERIA------------------I1. Technology: the article addresses blockchain, DLT, smart contracts or related technologyI2. Digital incentive mechanism: a token, cryptocurrency or similar incentive mechanism is presentI3. Circular context: the study relates to circular economy or waste/resource managementI4. Full text, explicit methodology: the article presents a concrete proposal (framework, prototype, data or structured review) EXCLUSION CRITERIA------------------E1. Blockchain is not the core technology of the studyE2. Absence of tokenization mechanism, token or smart contractE3. Exclusively financial application with no connection to circular economy or wasteE4. No relation to circular economy, circularity or waste managementE5. Excluded document type (editorial, note, book chapter, abstract)E6. Outside the 2019-2026 periodE7. Non-eligible languageE8. Full text: blockchain mentioned only as a future perspectiveE9. Token or incentive without inducing circular behaviourE10. Traceability without a token-based incentive componentE11. Full text unavailableE12. No explicit methodology (no framework, prototype, data or structured review) NOTES ON THE DATA-----------------Deduplication, edge case. One confirmed pair involved a published correctionrather than a second copy of the same study. The record retained as canonicalwas the correction notice (DOI 10.3389/fenrg.2021.634357, document typeCorrection, ID 1083), while both copies of the corrected article(DOI 10.3389/fenrg.2020.576462, retrieved from Scopus and from Web of Science)were flagged as duplicates. Title similarity between the two was 93%, abovethe 85% threshold. Stage counts are unaffected; the correction notice wassubsequently excluded at screening. Publication years. One record dated 2018 (DOI 10.1016/j.procs.2018.07.193,Web of Science, excluded at screening) is present despite the declared2019-2026 window, and 13 records are dated 2026, the year in which the searchwas performed and therefore partial. VERSION HISTORY---------------v2 (7 August 2026) replaces the files published in v1. The BibTeX exportsdistributed in v1 corresponded to a different review project and did not matchthe counts reported in the associated article; they have been withdrawn. Thefiles in this version are the Scopus and Web of Science record sets of thereview actually reported in the article. AUTHORS-------Rafael Gross (contact), Universidade Paulista (UNIP), Graduate Program in Production Engineering, Rua Dr. Bacelar 1212, Vila Clementino, 04026-002, Sao Paulo, SP, Brazil. ORCID 0009-0005-0669-0211Berislav Andrlic, Faculty of Tourism and Rural Development, Pozega, CroatiaRodrigo Franco Goncalves, Universidade Paulista (UNIP), Graduate Program in Production Engineering, Rua Dr. Bacelar 1212, Vila Clementino, 04026-002, Sao Paulo, SP, Brazil. ORCID 0000-0003-2206-3136 Contact: [e-mail]