Live on Base Mainnet · chainId 8453
Protean Ledger — canonical scientific record
- Network
- Base Mainnet
- Chain ID
- 8453
- Schema
- protean.ledger.v1
- Deployment block
- 46,837,000
Proxy
0xE3c261F3C05D4c4710003cd6066EfD95094cf5f0Verification report · receipts
Verifying 0xa18d…0dab
Seven independent checks against indexed chain state. Each row shows the underlying evidence — block, transaction, digest, replay pointer — and links to the source you can recompute yourself. The chain is the authority; this page is a lens.
Receipts
Seven checks. Every value is real.
- 01.Record exists on chain (RecordRegistered event indexed)Pass
- 02.Record content emitted (RecordContentEmitted indexed)No data
Content event was not decoded into a non-empty title field.
- 03.Indexer state digest reproduciblePass
- 04.Lineage edges (1 parent edge indexed)Pass
- 05.Replay artifact: Not providedNot provided
This on-chain record is indexed, but no external replay artifact pointer was attached. Chain identity, transaction, and indexer checks still apply; the replay artifact was omitted at publication time and should be treated as a legacy missing-replay record.
- replayPointer
- Class
- missing
- 06.Not retractedPass
- 07.Not supersededPass
Verify locally
Four runnable commands. Each is grounded in this specific record. If you have cast, curl, and python3, you have everything you need.
1. Read this record from Base mainnet (no indexer trust)
cast call 0xE3c261F3C05D4c4710003cd6066EfD95094cf5f0 \ "getRecord(bytes32)" 0xa18d093480c6badcbedab61f9c6e8b5457e8c99ed79b2344b7abc043ca960dab \ --rpc-url https://mainnet.base.org
2. Fetch the indexed record via the explorer API
curl -s "https://www.protean.sh/ledger/api/v1/records/0xa18d093480c6badcbedab61f9c6e8b5457e8c99ed79b2344b7abc043ca960dab" | jq .
3. Read the live indexer state digest
curl -s "https://www.protean.sh/ledger/api/v1/indexer/digest" | jq .
4. Reproduce the full digest from genesis
# Reproduce the full indexer state from genesis against any Base RPC. curl -sL https://raw.githubusercontent.com/proteanlabs1/ledger-mirror/main/scripts/index_ledger_from_genesis.py -o index_ledger.py python3 index_ledger.py --rpc https://mainnet.base.org \ --proxy 0xE3c261F3C05D4c4710003cd6066EfD95094cf5f0 \ --db protean.db --from-block 46837000 --once python3 index_ledger.py --digest-only --db protean.db # Compare to https://www.protean.sh/ledger/api/v1/indexer/digest