Live on Base mainnet · chainId 8453
Protean Ledger — canonical scientific record
Proxy
0x2a6f84fA0a09b1c04F9edAccCF6De58F11a4a364Stored on Base mainnet · chainId 8453
This record lives on the ProteanLedger UUPS proxy at 0x2a6f84fA…a4a364. The chain is the source of truth — the explorer is a read-only lens.
Four commands. Two terminals. No login. No wallet. No trust in Protean Labs required.
1. Read the record from chain
cast call 0x2a6f84fA0a09b1c04F9edAccCF6De58F11a4a364 \ "getRecord(bytes32)" \ 0x828fa1bd558cc7a55ff6762130c40ed1120f42cb28550fbf1df98b529e7b4ae0 \ --rpc-url https://mainnet.base.org
2. Inspect via the indexer JSON API
curl -s https://www.protean.sh/ledger/api/v1/records/0x828fa1bd558cc7a55ff6762130c40ed1120f42cb28550fbf1df98b529e7b4ae0 | jq
3. Reproduce the canonical state digest from genesis
curl -sL https://raw.githubusercontent.com/proteanlabs1/ledger-mirror/main/scripts/index_ledger_from_genesis.py -o index.py python3 index.py --rpc https://mainnet.base.org \ --proxy 0x2a6f84fA0a09b1c04F9edAccCF6De58F11a4a364 \ --db /tmp/protean.db --from-block 46612390 --once python3 index.py --digest-only --db /tmp/protean.db # Compare against https://www.protean.sh/ledger/api/v1/indexer/digest
4. Confirm published indexer digest
curl -s https://www.protean.sh/ledger/api/v1/indexer/digest | jq '.digest, .record_count, .last_block'
Verification
What we can attest to from indexer state. Replay-artifact + content-digest verification you run yourself — see the verify page for copy-pasteable shell snippets and the public mirror for the canonical reproducibility script.
The deployed indexer code is public and stateless beyond the SQLite database; the canonical-bytes serialization is RFC 8785 with a single bytea-hex local rule; event ordering is total over (block, log_index); record IDs are content-addressed. Third-party reproduction is the architectural test of independence. This hypothesis is falsifiable by demonstrating divergent digests from identical inputs.
First-class on-chain edges. Every relation has a typed RelationType and a corresponding event log entry. Click any neighbor to navigate.
Ancestors (0)
No on-chain ancestors. This record is a root in the graph.
Artifact mirror was introduced after this record was registered. Chain identity, content digest, lineage, and indexer reproduction verification all remain available. Public artifact sha256 verification was not available at registration time; the mirror carries an honest reconstruction in artifacts/mainnet/ with documented limitations.
git:meltedmindz/protean-labs@main:scripts/index_ledger_from_genesis.py#sha256:reproducibility
Cite this record
Protean Labs. (2026, May 29). Hypothesis: any third party can reproduce the Protean Ledger state digest from genesis using only the deployed contract and a public Base RPC, with no dependency on Protean infrastructure. (Scientific Record No. 0x828fa1bd558cc7a55ff6762130c40ed1120f42cb28550fbf1df98b529e7b4ae0) [Ledger research record]. Protean Ledger, Base Mainnet. https://protean.sh/r/828fa1bd
{
"recordId": "0x828fa1bd558cc7a55ff6762130c40ed1120f42cb28550fbf1df98b529e7b4ae0",
"priorObjectId": "0x0000000000000000000000000000000000000000000000000000000000000000",
"recordType": "Hypothesis",
"recordTypeIndex": 2,
"lifecycleState": "AssayReturned",
"lifecycleStateIndex": 4,
"disclosureState": "Public",
"disclosureStateIndex": 4,
"title": "Hypothesis: any third party can reproduce the Protean Ledger state digest from genesis using only the deployed contract and a public Base RPC, with no dependency on Protean infrastructure.",
"summary": "The deployed indexer code is public and stateless beyond the SQLite database; the canonical-bytes serialization is RFC 8785 with a single bytea-hex local rule; event ordering is total over (block, log_index); record IDs are content-addressed. Third-party reproduction is the architectural test of independence. This hypothesis is falsifiable by demonstrating divergent digests from identical inputs.",
"author": "Protean Labs",
"runtimeId": "protean-mainnet-cycle-1",
"replayPointer": "git:meltedmindz/protean-labs@main:scripts/index_ledger_from_genesis.py#sha256:reproducibility",
"publicationUrl": "https://www.protean.sh/ledger/verify",
"references": [],
"referencesDigest": "0x0000000000000000000000000000000000000000000000000000000000000000",
"supersedes": "0x0000000000000000000000000000000000000000000000000000000000000000",
"retracts": "0x0000000000000000000000000000000000000000000000000000000000000000",
"publishedAt": 0,
"registeredAt": 1780015411,
"writer": "0x827ba988a05c47ce94a37d7002c79a8b31a9c2c7",
"version": 1,
"registerBlock": 46613032,
"registerTx": "0xea3d0f9bd7430bb322b745e8a50e1a1ef038e0d221847709fc9b5979a16de507"
}