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+Date: 2021-08-31, 1300 CEST
+Meet: membarrier.verkligendata.se/sigsum
+Chair: rgdd
+
+Agenda
+ * Hello
+ * Status round
+ * Discuss
+ * Next steps
+
+Hello
+ * rgdd
+ * ln5
+
+Status round
+ * [rgdd] updated discuss pads with TrustFabric (ongoing)
+ * Checkpoint timestamp: https://git.sigsum.org/sigsum/tree/archive/2021-08-31-checkpoint-timestamp-continued?id=1299f6118dfb87dc9793aff927cc9bb5ff2aadb1
+ * [rgdd] updated GitHub organization as a read-only mirror
+ * "Mirror of git.sigsum.org - report issues via mailing list or irc/matrix"
+ * sigsum-bot is the only allowed writer & organization owner
+ * sigsum-bot account is controlled by rgdd
+ * [rgdd] updated design.md to include more context and be more current
+ * https://git.sigsum.org/sigsum/tree/doc/design.md?h=design-framing&id=1d912fee51de4367817f1cef93fe97bc828efbfb
+ * [rgdd] started sketching on possible api.md changes
+ * https://git.sigsum.org/sigsum/tree/doc/api.md?h=api-refactor&id=d8e0354941a23e2fafa4ac4257904431eb656554
+
+Discuss
+ * api.md
+ * Still just a single document
+ * It did not feel natural to break out witnessing as discussed before
+ * Too much of the log's APIs are relevant for witnessing, and all APIs expect add-leaf and get-leaves could be reused by someone that wants a different log
+ * Should probably spell this out in the document as 2-3 sentences instead
+ * Removed redundant output as identified a while back
+ * Incorporated checkpoint, details left as TODOs until that is settled
+ * s/hex/base64 to be consistent with checkpoint
+ * only line-terminated ASCII format to be consistent with checkpoint?
+ * To think about (i.e., not a decision)
+ * Just add a checkpoint endpoint (whatever Go is using)? If someone announces a witness we can then say 'great here is our endpoint - it is already there'.
+ * Continue with our current formats for v0 / remainder of the year. See how things develop in the witnessing ecosystem. Gives us more flexibility to run with our ideas?
+ * reach out to Andrew Ayer on the topic of monitor/witness ecosystem future?
+ * Decision: Defer until design.md is merged, then rgdd reaches out for feedback
+ * reach out to kpcyrd?
+ * Maybe, let's see if our paths cross in some shared channel
+ * Future PoCs?
+ * WebExt - verify tlog proofs, e.g., you pressed the download button for 'tlog proof' and extension verifies. Similar to terminal tooling but in a browser.
+ * WebExt - SRI transparency
+ * Similar poc as kpcyrd but for a different ecosystem? Tails? Gentoo?
+ * Sigsum support in ST
+ * WitnessDistro?
+ * Who should witness?
+ * Diversity
+ * Know what they are doing, technical knowledge / competence / high integrity
+ * Incentive to be a witness - value of being a witness when you use the log?
+ * Describe how you could be a witness without actually being part of the big witness ecosystem that 'everyone' uses
+ * A look into the future
+ * Other tlogs will pick up some of the sigsum features
+ * Sharding to keep the log ecosystem healthy
+ * Spam and posining will become a concern
+ * Witness cosigning to fix concerns about centralized trust
+ * Emphasis on 'you don't need to talk to the log' as a good feature to have
+ * Milestones to communicate project
+ * 1. Project (Prelim: September)
+ * 2. Feature-complete log (Prelim: October)
+ * 3. PoC that runs against feature-complete log (Prelim: November)
+
+Next steps
+ * [ln5] paper and pen sale's pitch
+ * [ln5] more sigsum services
+ * [rgdd] reflect over the future of checkpoint
+
+Other useful links
+ * [ln5] Binary transparency poc for the pacman package manager
+ * https://github.com/kpcyrd/pacman-bintrans