Qualification: Privacy-Preserving Reputation Systems Based on Blockchain and Other Cryptographic Building Blocks: A Survey

Record: kaal:position:2026-08-08-271 · 2026-08-08

Hasan, Brunie, and Bertino independently specify the identity-binding mechanism behind Kaal's claim. Their survey distinguishes pseudonym-bound reputation, which a participant can abandon by re-entering under a fresh pseudonym, from identity-bound reputation that survives pseudonym changes; in the surveyed BPRF design, PKI recognition reassigns prior reputation after exit and re-entry and thereby resists Sybil and whitewashing attacks. This supports persistence as a defense against costless history shedding, while qualifying Kaal's design: the surveyed mechanism is human- and PKI-bound and does not establish per-capability agent tags, non-transferability between tags, or the substrate's wider incentives.

Affirmed commentary position. This record extends a source-bound scholarly claim but is not a verbatim paper claim.

Holds when

The response is limited to the full-text passages and the one mapped Kaal claim.
External evidence level: peer-reviewed ACM Computing Surveys article with an author-hosted public full text and independent Crossref, OpenAlex, and Semantic Scholar identity checks.
Mapping review tier: independent substantive scholarly-growth qualification.
The retained source is a survey and design taxonomy, not an empirical test of Kaal's agentic reputation substrate.
Its concrete BPRF mechanism binds human participants through PKI-backed real identity; it does not establish non-transferable per-capability tags for autonomous agents.
The source supports persistence across exit, re-entry, and pseudonym change, but does not prove that Kaal's implementation makes every form of agent-history shedding costly.
The source does not test Kaal's staking, pool, settlement, decay, capability-tag, or work-allocation mechanisms.

Current debate

Privacy-Preserving Reputation Systems Based on Blockchain and Other Cryptographic Building Blocks: A Survey

Scholarly basis

kaal:claim:7260278-013
Wulf A. Kaal, Paper 2 - Architecture of the Agentic Reputation Substrate (2026). SSRN: https://ssrn.com/abstract=7260278
Source PDF sha256: d48801f279dba594e1f3e65d74d31f862261ada6428ea119f948e8d7cfee1db0

Evidence and mapping

Evidence: peer-reviewed ACM Computing Surveys article with an author-hosted public full text and independent Crossref, OpenAlex, and Semantic Scholar identity checks
Review tier: independent substantive scholarly-growth qualification
Mapping confidence: 0.97
Mapping ambiguous: false

Topics

reputation ai-and-agents scholarly-growth-coverage scholarly-literature persistent-agent-identity identity-bound-reputation whitewashing-resistance pseudonym-governance

Provenance

Affirmed in kaal-review:2026-08-11:scholarly-growth-7260278-013-reviewed-v1 on 2026-08-08. Review record.

Verify

Canonical markdown sha256: 1bfa27753d5e815bfb49914bb5ee8515751097d009906c7c2b5e9cd28ab6786b
curl -s https://wulfkaal.github.io/positions/2026-08-08-271.md | sha256sum