Yano

Breaks after HF

Blocked by

• upstream fixscalusplutus-script-contexttransaction-encoding

Waiting on

• amaruin-progress, no verdictblock-encodingconsensus-participationera-identitytransaction-encoding
• blockfrostno-evidence, no verdicttransaction-encoding
• bloxbean-cardano-client-libraryno-evidence, no verdicttransaction-rules
• julcno-evidence, no verdictplutus-script-context
• koiosno-evidence, no verdicttransaction-encoding
• scalusin-progress, no verdictplutus-language
• yaciin-progress, no verdictblock-encodingera-identityplutus-languageprotocol-parametersstake-pool-registrationtransaction-encodingtransaction-rules

Lead decisions

• confirmed· scalusplutus-script-contexttransaction-encoding

  Yano evaluates scripts with Scalus, which does not implement PlutusV4 evaluation or context building.

  • scalus-bridge/src/main/java/org/yanoproject/scalusbridge/ScalusBasedTransactionEvaluator.java:12import scalus.bloxbean.ScalusTransactionEvaluator;

• undetermined· bloxbean-cardano-client-librarytransaction-encodingplutus-language

  The previously cited path or excerpt changed in the refreshed revision. The old decision and evidence remain in the 2026-10-26 archive; reachability at this revision needs a new source/runtime assessment.

• not-reached· aikenplutus-languageplutus-script-context

  The project compiles its own validators to PlutusV3; existing Plutus versions stay valid after the fork, so only PlutusV4 authoring is blocked.

  • appchain/onchain/aiken/appchain-anchor/aiken.toml:1name = "bloxbean/appchain_anchor"

• not-reached· blockfrostera-identityprotocol-parameters

  Bootstrap fetches a recent tip and selected UTxOs from Blockfrost; Yano serves its own Blockfrost-compatible parameters and eras from its ledger.

  • app/config/application-bootstrap.yml:16provider: ${YANO_BOOTSTRAP_PROVIDER:blockfrost} # blockfrost | koios

• not-reached· bloxbean-cardano-client-libraryera-identityprotocol-parametersstake-pool-registration

  Its other cardano-client-lib use is addresses, crypto, utilities and building its own transactions.

  • gradle/libs.versions.toml:3cardano-client-lib = "0.8.0-pre7"

• not-reached· cardano-db-syncblock-encodingera-identityprotocol-parametersstake-pool-registrationtransaction-encoding

  db-sync is used only by a verification script that cross-checks exports.

  • app/verify.sh:3# Cross-verify Yano parquet exports against DBSync and/or Yaci-Store

• not-reached· julcplutus-language

  JuLC is only named in a license note of the build; Yano evaluates scripts through other libraries.

  • app/build.gradle:544// julc (org.julclang) declares its own MIT license in its POM.

• not-reached· koiosera-identityprotocol-parameters

  Koios is an alternative bootstrap source for the tip and UTxOs only.

  • app/config/application-bootstrap.yml:16provider: ${YANO_BOOTSTRAP_PROVIDER:blockfrost} # blockfrost | koios

• not-reached· ogmiosblock-encodingera-identityplutus-languageprotocol-parameterstransaction-encoding

  Yano answers evaluation in an Ogmios-compatible format itself; it does not call Ogmios.

  • app/src/main/java/org/yanoproject/app/api/utils/EvaluationResource.java:21* Blockfrost/Ogmios-compatible Plutus script evaluation endpoint.