transparency-dev/tessera

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Go library for building tile-based transparency logs (tlogs)

Stars: 238
Forks: 56
Open beginner issues: 0
Indexed issues: 29
Avg merge: 1d 2h
Merged PRs (30d): 35

Dominant language: Go
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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29 open issues indexed

AWS: integration's fixed 10s context deadline stalls the append path on large logs, and is not configurable Open

transparency-dev/tessera#1181 · 1 comment · 1 assignee · Opened Sep 16, 2026
AWS: garbageCollect permanently wedged — DeleteObjects called with an empty key list returns MalformedXML, GCCoord.fromSize never advances Open

transparency-dev/tessera#1179 · 1 comment · 1 assignee · Opened Sep 16, 2026
Migrate to use formats/policy Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 55/100

transparency-dev/tessera#1152 · Opened Sep 7, 2026
Tessera witnessing does not support "optional" witnesses Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

transparency-dev/tessera#1123 · Opened Aug 17, 2026
Storage lifecycle instances need a shutdown hook Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 50/100

transparency-dev/tessera#1111 · Opened Aug 13, 2026
fsck: `Check` deadlocks instead of returning an error when a resource check fails (default `Opts{N: 1}`) Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

transparency-dev/tessera#1098 · Opened Aug 7, 2026
armhf: FAIL: TestAntispamFollowerErrorBeforeStream: cannot allocate memory Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

transparency-dev/tessera#1082 · Opened Jul 30, 2026
Feature: Support native GCP Cloud SQL + GCS backend Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

transparency-dev/tessera#957 · 1 comment · Opened May 12, 2026
Add support for MTC logs & mirrors Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

transparency-dev/tessera#945 · Opened May 6, 2026
Mitigate gRPC diamond dependency and version skew issues for downstream consumers (Debian) Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 52/100

transparency-dev/tessera#931 · Opened Apr 7, 2026
Add Antispam otel metrics Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

transparency-dev/tessera#912 · Opened Mar 23, 2026
Feature: PostgreSQL storage support Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

transparency-dev/tessera#900 · 3 reactions · Opened Mar 12, 2026
Feature: Thread-safe `ProofBuilder` Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

transparency-dev/tessera#892 · Opened Mar 9, 2026
Feature: Support tlog-tiles pruning Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

transparency-dev/tessera#855 · Opened Feb 5, 2026
R2 + Postgres deployment Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

transparency-dev/tessera#845 · 3 comments · Opened Jan 14, 2026
Support garbage collection for POSIX oneshot tooling Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

transparency-dev/tessera#804 · Opened Nov 7, 2025
Feature: Allow personality code to author custom storage implementations Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

transparency-dev/tessera#660 · Opened May 21, 2025
Feature: support resource sharing for sharded logs Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

transparency-dev/tessera#589 · 9 reactions · Opened Apr 9, 2025
Feature: Migrate Trillian v1 Log to Tessera Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

transparency-dev/tessera#577 · Opened Apr 3, 2025
Feature: Mirrors Open

enhancement

transparency-dev/tessera#576 · 1 comment · 1 assignee · Opened Apr 3, 2025
Feature: Preordered Logs Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

transparency-dev/tessera#575 · Opened Apr 3, 2025
[GCP] Clean up Spanner connections on shutdown Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

transparency-dev/tessera#567 · Opened Mar 31, 2025
[Hammer] Monitor leaf integration Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

transparency-dev/tessera#512 · Opened Mar 3, 2025
[Hammer] Support long-lived performance tests with private GCS bucket Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

transparency-dev/tessera#511 · Opened Mar 3, 2025
The ctonly package could do with some golden tests Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

transparency-dev/tessera#420 · Opened Dec 16, 2024
[Conformance] add another endpoint to add with sync integration Open

enhancement

transparency-dev/tessera#329 · 1 assignee · Opened Nov 20, 2024
Think about whether and how to add support for multiple logs within the same deployment in Terraform Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

transparency-dev/tessera#267 · 2 reactions · Opened Sep 25, 2024
Add support for tlog-tiles/ct-static-api to the clone tool Open

enhancement help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

transparency-dev/tessera#90 · Opened Jul 25, 2024
Web based log explorer Open

enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 35/100

transparency-dev/tessera#89 · 4 comments · 3 reactions · Opened Jul 25, 2024

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