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Dashboard Maintainer Memo — Gonka v0.2.15

v0.2.15 changed the wire format of a few /v1 query endpoints as a side effect of an internal API refactor. A follow-up patch will restore the previous shapes; once it ships, hosts upgrade independently: for a transition period, the endpoints below can answer in either shape depending on which host you query. Please accept both. This ambiguity is limited to the endpoints and fields listed here — no need to generalize it; everything else is unchanged and single-shape.

Below, "v0.2.15 shape" is what hosts return today; "restored shape" is the pre-0.2.15 format that patched hosts will return.

1. /v1/epochs/latest — params nested and stringified

Affected field: epoch_params.

  • restored shape: epoch_params.epoch_length = 40320 (number)
  • v0.2.15 shape: epoch_params.epoch_params.epoch_length = "40320" (string; whole object nested one level deeper, all int fields as strings)

Robust read: if epoch_params.epoch_params exists, descend into it; parse numeric fields accepting both number and string.

Also: active_confirmation_poc_event may be null or absent — treat both as "no event".

2. /v1/epochs/{epoch}/participants — numbers as strings

{epoch} is an epoch number or the literal current.

Affected field: active_participants. In the v0.2.15 shape its numeric fields (created_at_block_height, poc_start_block_height, effective_block_height, epoch_group_id, epoch_id, and numeric fields inside participants[]) are strings. Restored shape: numbers. Accept both for this object only.

3. /v1/versions — mlnodes may be missing

The v0.2.15 shape returns only timestamp / api_version / node_version. The restored shape includes the mlnodes array (empty array if the host has none). A missing mlnodes key means "host not yet patched", not "no ML nodes".

4. Small permanent changes (intentional, will not be reverted)

  • Optional empty values are omitted rather than emitted: hugging_face_id in /v1/models is absent when unset (was ""); active_confirmation_poc_event is absent when inactive. Treat absent as empty.
  • /v1/poc-batches/{epoch} returns 404 when there are no batches (was 200 with an empty list).
  • Some /v1 responses from the per-host API now carry a Deprecation: true header: read endpoints are gradually moving to the edge-api service (same paths, same shapes). Nothing to change today.
  • /v1/bls/* has the same string/enum-name flip in the v0.2.15 shape — only relevant if you read BLS data.

5. Appendix: proof verification bundle — skip unless you verify proofs

/v1/epochs/{epoch}/participants, fields block, proof_ops, validators:

  • v0.2.15 shape: block is an SDK-style block (string height, base64 hashes); validators[].voting_power is a string
  • restored shape: CometBFT block JSON (numeric header.height, hex-uppercase hashes); numeric voting_power

If you only display participants and weights, this section does not apply to you.