Cardano Updates

cMATRA (subject 98c61f406f7c8df11ccff49ca1631d8bca9663894537c6c5ee5ed418
634d41545241, fingerprint asset1za7s4h0upcr54mrxc3xtt8vuptjvw6cugfthzw)
is the Cardano-native representation of MATRA — the governance and
application-layer payment token of the Materios partner-chain. (Runtime
extrinsic fees on Materios are paid in MOTRA, a separate per-block gas
token.) Minted 2026-05-18 in tx 9a68849fd788fb3622bc5823d892b61c2e94ff5
7416b190300ee49f3dc7cb6a2 with a Plutus V3 dual-admin one-shot policy.

- 1 billion total supply, 6 decimals
- Dual-admin mint policy (admin_1 + admin_2 both required)
- 12 annotated signatures total (6 properties × 2 admins)
- `policy` field intentionally omitted: CTR's metadata-validator only
  parses native-script JSON; Plutus mints publish without it
- Mint source: github.com/Flux-Point-Studios/matra-token-merger

Signed-off-by: Ales Verbic <[email protected]>

Signed-off-by: Doc Holiday <[email protected]>

Signed-off-by: Doc Holiday <[email protected]>

Signed-off-by: Doc Holiday <[email protected]>

Signed-off-by: Doc Holiday <[email protected]>

Co-authored-by: Robert Phair <[email protected]>

Co-authored-by: Robert Phair <[email protected]>

Co-authored-by: Robert Phair <[email protected]>

* feat(chain): chain backward iterator

Signed-off-by: cryptodj413 <[email protected]>

* feat(chain): address review

Signed-off-by: cryptodj413 <[email protected]>

---------

Signed-off-by: cryptodj413 <[email protected]>

Signed-off-by: cryptodj413 <[email protected]>

Signed-off-by: Chris Gianelloni <[email protected]>

Signed-off-by: cryptodj413 <[email protected]>

Co-authored-by: Copilot <[email protected]>

Signed-off-by: Chris Gianelloni <[email protected]>

Bumps [github.com/aws/aws-sdk-go-v2/service/s3](https://github.com/aws/aws-sdk-go-v2) from 1.100.1 to 1.101.0.
- [Release notes](https://github.com/aws/aws-sdk-go-v2/releases)
- [Commits](https://github.com/aws/aws-sdk-go-v2/compare/service/s3/v1.100.1...service/s3/v1.101.0)

---
updated-dependencies:
- dependency-name: github.com/aws/aws-sdk-go-v2/service/s3
  dependency-version: 1.101.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Signed-off-by: Chris Gianelloni <[email protected]>

Signed-off-by: Chris Gianelloni <[email protected]>

Bumps [github.com/blinklabs-io/gouroboros](https://github.com/blinklabs-io/gouroboros) from 0.168.0 to 0.170.1.
- [Release notes](https://github.com/blinklabs-io/gouroboros/releases)
- [Changelog](https://github.com/blinklabs-io/gouroboros/blob/main/RELEASE_NOTES.md)
- [Commits](https://github.com/blinklabs-io/gouroboros/compare/v0.168.0...v0.170.1)

---
updated-dependencies:
- dependency-name: github.com/blinklabs-io/gouroboros
  dependency-version: 0.170.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* build(deps): bump actions/checkout from 6.0.0 to 6.0.2

Bumps [actions/checkout](https://github.com/actions/checkout) from 6.0.0 to 6.0.2.
- [Release notes](https://github.com/actions/checkout/releases)
- [Commits](https://github.com/actions/checkout/compare/v6...v6.0.2)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

* fix: Apply suggestion from @cubic-dev-ai[bot]

Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>
Signed-off-by: Chris Gianelloni <[email protected]>

* fix: Apply suggestion from @wolf31o2

Signed-off-by: Chris Gianelloni <[email protected]>

---------

Signed-off-by: dependabot[bot] <[email protected]>
Signed-off-by: Chris Gianelloni <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Chris Gianelloni <[email protected]>