Cardano Updates

Bumps [github.com/blinklabs-io/gouroboros](https://github.com/blinklabs-io/gouroboros) from 0.153.1 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/v0.153.1...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]>

Bumps [andrewslotin/go-proxy-pull-action](https://github.com/andrewslotin/go-proxy-pull-action) from 1.4.0 to 1.5.0.
- [Release notes](https://github.com/andrewslotin/go-proxy-pull-action/releases)
- [Commits](https://github.com/andrewslotin/go-proxy-pull-action/compare/e5aea3b8b3478fc5b76befda4390513868ed2dc8...00af8a5a49c844d6dde0bbbc116b72d8fd7ae97c)

---
updated-dependencies:
- dependency-name: andrewslotin/go-proxy-pull-action
  dependency-version: 1.5.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Bumps the actions-deps group with 4 updates: [step-security/harden-runner](https://github.com/step-security/harden-runner), [oxsecurity/megalinter](https://github.com/oxsecurity/megalinter), [scalacenter/sbt-dependency-submission](https://github.com/scalacenter/sbt-dependency-submission) and [github/codeql-action](https://github.com/github/codeql-action).


Updates `step-security/harden-runner` from 2.19.1 to 2.19.3
- [Release notes](https://github.com/step-security/harden-runner/releases)
- [Commits](https://github.com/step-security/harden-runner/compare/a5ad31d6a139d249332a2605b85202e8c0b78450...ab7a9404c0f3da075243ca237b5fac12c98deaa5)

Updates `oxsecurity/megalinter` from 9.4.0 to 9.5.0
- [Release notes](https://github.com/oxsecurity/megalinter/releases)
- [Changelog](https://github.com/oxsecurity/megalinter/blob/main/CHANGELOG.md)
- [Commits](https://github.com/oxsecurity/megalinter/compare/8fbdead70d1409964ab3d5afa885e18ee85388bb...0e3ce9b9c8c10effb9b269509cc47ca17cae31c7)

Updates `scalacenter/sbt-dependency-submission` from 3.2.1 to 3.2.2
- [Release notes](https://github.com/scalacenter/sbt-dependency-submission/releases)
- [Commits](https://github.com/scalacenter/sbt-dependency-submission/compare/f43202114d7522a4b233e052f82c2eea8d658134...1cc96a7038ea2b014c200c1dae3a0cc92293b91d)

Updates `github/codeql-action` from 4.35.4 to 4.35.5
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/68bde559dea0fdcac2102bfdf6230c5f70eb485e...9e0d7b8d25671d64c341c19c0152d693099fb5ba)

---
updated-dependencies:
- dependency-name: step-security/harden-runner
  dependency-version: 2.19.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: actions-deps
- dependency-name: oxsecurity/megalinter
  dependency-version: 9.5.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions-deps
- dependency-name: scalacenter/sbt-dependency-submission
  dependency-version: 3.2.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: actions-deps
- dependency-name: github/codeql-action
  dependency-version: 4.35.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: actions-deps
...

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

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]>