Scalus

Dijkstra readiness: gap (see below). Dependency evidence does not establish compatibility.

Dijkstra hardfork

All tools →

Breaks after HF

Blocked byblockfrost bloxbean-cardano-client-library

Own code gap

Issues and PRs

scalus3/scalus#265merged · feat(ledger): add Script.PlutusV4 case for Dijkstra-era ref-scripts · PlutusV4 reference scripts
scalus3/scalus#371merged · fix: lower Data matches via chooseData, gate Case on Data to PV12 · Data case gated to PV12

Exposure implements · inherited readiness gap · boundary component, R2 status gap · scanned at a3f45cb92c

Changed surfaces touched by shipped code (10)

block-encodinggap · via marker:raw-cbor-codec, marker:segregated-block-body, ogmios, utxorpc
cardano-cliupstream · via service:cardano-cli
era-identitygap · via bloxbean-cardano-client-library, marker:closed-era-list, blockfrost, koios, ogmios
node-to-client-protocolverified · via marker:node-to-client, ogmios
plutus-languagegap · via scalus, bloxbean-cardano-client-library, marker:plutus-language-enum, ogmios
plutus-script-contextgap · via scalus, marker:script-context
protocol-parametersgap · via bloxbean-cardano-client-library, marker:cost-models-or-parameters, blockfrost, koios, ogmios
stake-pool-registrationgap · via bloxbean-cardano-client-library, marker:pool-registration
transaction-encodinggap · via scalus, bloxbean-cardano-client-library, marker:legacy-stake-certificate, marker:raw-cbor-codec, blockfrost, koios, ogmios, utxorpc
transaction-rulesno-evidence · via bloxbean-cardano-client-library

Blocked by

own gapscalusplutus-script-contexttransaction-encoding
upstream fixblockfrostera-identityprotocol-parameters
upstream fixbloxbean-cardano-client-librarytransaction-encodingplutus-language

Waiting on

blockfrostno-evidence, no verdicttransaction-encoding
bloxbean-cardano-client-libraryno-evidence, no verdicttransaction-rules
koiosno-evidence, no verdicttransaction-encoding
utxorpcin-progress, no verdictblock-encodingtransaction-encoding

What fixing it unlocks

Step 14 of the fix order: once the earlier steps land, it unlocks 2 more tools: yaci-store, yano.

If only this were fixed

No tool on its own: every tool that needs it also waits on something else.

Lead decisions

confirmed· blockfrostera-identityprotocol-parameters
The Blockfrost provider reads /network/eras and latest epoch parameters.
- scalus-cardano-ledger/shared/src/main/scala/scalus/cardano/node/BlockfrostProvider.scala:499def fetchNetworkEras: Future[Seq[EraInfo]] =
- scalus-cardano-ledger/shared/src/main/scala/scalus/cardano/node/BlockfrostProvider.scala:575fetchProtocolParamsFromUrl(s"$baseUrl/epochs/latest/parameters")
confirmed· bloxbean-cardano-client-librarytransaction-encodingplutus-language
The Scalus evaluator for cardano-client-lib evaluates transactions in cardano-client-lib's model, which has no V4 language or Dijkstra body keys.
- bloxbean-cardano-client-lib/src/main/scala/scalus/bloxbean/ScalusTransactionEvaluator.scala:36class ScalusTransactionEvaluator(
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.
- build.sbt:288`scalus-bloxbean-cardano-client-lib`,
not-reached· koiosera-identityprotocol-parameters
Koios supplies delegation, pool, DRep and treasury histories to the stake-state resolver; no era names or parameters.
- bloxbean-cardano-client-lib/src/main/scala/scalus/bloxbean/StakeStateResolver.scala:25private val koiosUrl = "https://api.koios.rest/api/v1"
not-reached· ogmiosblock-encodingera-identityplutus-languageprotocol-parameterstransaction-encoding
Ogmios is named only in a comment on the shared chain-follower design; Scalus ships no Ogmios client.
- scalus-cardano-ledger/shared/src/main/scala/scalus/cardano/node/stream/internal/HubDriver.scala:9* it, pull again. Written once so that Blockfrost, Ogmios and UTxORPC cannot each get the

Inspect source release

Artifact mapping

partial

Native resolution

unresolved

Integration review

unresolved

Capability review

unresolved

Discovered source release: v1.2.0
Source repository: scalus3/scalus
Last successful discovery: 2026-10-17T16:53:07.045Z
Last attempt: 2026-10-17T16:53:05.103Z

Dependency profiles

No native profile has been collected. Dependency coverage is unresolved, not empty.

Chain-facing capabilities

Findings describe behavior in a specific release and configuration. Suggestions need verification; historical findings do not establish behavior in the current source. None establishes hardfork compatibility.

No capability findings have been returned. Behavior remains unresolved; an empty list does not mean this tool has no chain-facing capabilities.

Unresolved frontiers and next actions

capability

Chain-facing capabilities have not been reviewed.

Next: Review production entry points and integration behavior.

integration

Runtime, bundled, and service dependencies have not been reviewed.

Next: Export a discovery review packet.

resolution

No native dependency resolution has been imported.

Next: Collect a native resolution for a declared release/profile.

artifact

Source release identified; published package/binary correspondence and supported profiles need verification.

Next: Confirm distribution artifacts and production configuration with release evidence.

Discovered manifests (11)

Evidence index (2)

Pinned repository tree for manifest and integration discoveryevidence:876f87c6bcd42581f19d6eb43e11a59d88f014217f791f51f59e6745445e800fRetained at data/readiness/evidence/876f87c6bcd42581f19d6eb43e11a59d88f014217f791f51f59e6745445e800f.json.gz
Release selection and immutable source identityevidence:b696c00651ba16e47aac05b5683233de34e33b0cc78d96fbed0f24593f3cf967Retained at data/readiness/evidence/b696c00651ba16e47aac05b5683233de34e33b0cc78d96fbed0f24593f3cf967.json.gz