Sigsum log-go

This repository provides a Trillian personality implementing the sigsum/v0 design and API.

Public prototype

There is a public prototype running with zero promises of uptime, stability, etc. Relevant log information:

Base URL: https://ghost-shrimp.sigsum.org/
Public key: e65f8bff3a5cfe1781b094ebcf41d6a6d0e254c0de5144373719e64099fbb343
Shard start: 1656173139 (Sat 25 Jun 2022 04:05:39 PM UTC)

Two witnesses are running as well, this too with zero promises of uptime, stability, etc. Relevant witness information:

Public key: 812dbef0156b079e2d048747b2189cbfa64f96e2204a17cb23cb528080871503
Public key: 8c343bffe33a5889b5f350dc162bbdfec3b29e2c498475ccdf969a2743be0291

As described in the design and API documentation, you can talk to the log by sending it ASCII key-value pairs. For example, fetching a cosigned tree head and two log entries:

$ curl https://ghost-shrimp.sigsum.org/sigsum/v0/get-tree-head-cosigned
timestamp=1656448119
tree_size=77
root_hash=e2382a44b83dd21403d9989fc6b1438a1043e1acb791e5630f45706e3e5ac466
signature=be19395e1914c67c7e2a49303c672675ff6a2365ead7dc0751e109923174c53c81b5fb56d1446c6e43c0ba68c88160b243e75fc6fd1e66aedbfae14165786a0a
cosignature=96faf7c119c895445c90c028caa0c287385d3c9e0d24672b0d499fc71e7ec4cad2bd6d242c66ff7ba9362161110933c397e6eadf48722be35c6f22e9c0a18605
key_hash=15e203ad786ad5e36c053ba883d09ad7dc6b2011bb9c111330f79c8f1d6b8e69

$ curl https://ghost-shrimp.sigsum.org/sigsum/v0/get-leaves/0/1
shard_hint=1656251476
checksum=c87b1ea095861174ef52ed7281eaf44fc237671f3fd61803a3cea3c98b9e81fe
signature=b32cad0ce5f1593250ce863ec3c039275db21b63bcae09aa905e348409ff97283b6f76efd9d87f4945a9b7d550ba480746f7aa08011f2217b7ed100159c87007
key_hash=d96934d633dca1ef8913a5421338ff371d07279f4b0b787b13c338f3520194e4
shard_hint=1656251511
checksum=471f5f5accbae3f550e0478a5bf32a272f107c9609380c15ddade128c8595681
signature=8745e005d0330c836e0f1137167697b324cb6765996a97ee53273f997c12259b2e7ab3d48aeb566c589230ece505ac392eb57629edcb7f0f26ee4eb18c1a620f
key_hash=d96934d633dca1ef8913a5421338ff371d07279f4b0b787b13c338f3520194e4

Go tooling that makes it easier to interact with sigsum logs will appear in a separate repository in the near future, see sigsum-go.