Supported chains

Nymra scans EVM chains: Ethereum and every chain that uses the same address format. One address is one identity on all of them, which is why a scan reads several chains at once. Solana and other non-EVM chains are not part of V1.

The open chain register holds 31 EVM chains. A scan in the Terminal reads the 17 that are on by default. The engine reads the other 14 too when it is asked for them by chain id, for example when you run it yourself. Most chains work without a key, straight from your browser. BNB Smart Chain and Linea need a free key, so they are read only through the Nymra relay, which holds it. Adding a chain is one line in the register, so the list grows without changing the rules.

The chain register

These tables are read from the register in the privacy-scan repository when the docs are built, so they always match what the scan does.

Scanned by default (17)

Chain	Chain id	Native coin	History from	Explorer links	Internal transfers
Ethereum	1	ETH	Blockscout; Routescan as backup	eth.blockscout.com	visible
Base	8453	ETH	Blockscout	base.blockscout.com	visible
Arbitrum One	42161	ETH	Blockscout	arbitrum.blockscout.com	visible
OP Mainnet	10	ETH	Blockscout	explorer.optimism.io	visible
Polygon PoS	137	POL	Blockscout	polygon.blockscout.com	visible
Robinhood Chain	4663	ETH	Blockscout	robinhoodchain.blockscout.com	not visible
Avalanche C-Chain	43114	AVAX	Routescan	snowtrace.io	visible
Blast	81457	ETH	Routescan	blastexplorer.io	visible
ZKsync Era	324	ETH	Blockscout	zksync.blockscout.com	visible
Scroll	534352	ETH	Blockscout	scrollscan.com	visible
Unichain	130	ETH	Blockscout	unichain.blockscout.com	visible
Gnosis	100	XDAI	Blockscout	gnosisscan.io	visible
Ink	57073	ETH	Blockscout	explorer.inkonchain.com	visible
Soneium	1868	ETH	Blockscout	soneium.blockscout.com	visible
BNB Smart Chain	56	BNB	NodeReal, through the Nymra relay	bscscan.com	not visible
Linea	59144	ETH	Etherscan, through the Nymra relay	lineascan.build	visible
Celo	42220	CELO	Blockscout	celo.blockscout.com	visible

Available on request (14)

Chain	Chain id	Native coin	History from	Explorer links	Internal transfers
World Chain	480	ETH	Blockscout	worldchain-mainnet.explorer.alchemy.com	visible
Mode	34443	ETH	Blockscout	explorer.mode.network	visible
Arbitrum Nova	42170	ETH	Blockscout	arbitrum-nova.blockscout.com	visible
MegaETH	4326	ETH	Blockscout	megaeth.blockscout.com	visible
Lisk	1135	ETH	Blockscout	blockscout.lisk.com	visible
Shape	360	ETH	Blockscout	shapescan.xyz	visible
Manta Pacific	169	ETH	Blockscout	pacific-explorer.manta.network	visible
Immutable zkEVM	13371	IMX	Blockscout	explorer.immutable.com	visible
Rootstock	30	RBTC	Blockscout	rootstock.blockscout.com	visible
Ronin	2020	RON	Blockscout	explorer.roninchain.com	visible
Astar	592	ASTR	Blockscout	astar.blockscout.com	visible
Aurora	1313161554	ETH	Blockscout	explorer.mainnet.aurora.dev	visible
Flow EVM	747	FLOW	Blockscout	evm.flow.com	visible
Filecoin EVM	314	FIL	Blockscout	filecoin.blockscout.com	visible

Every chain also has a public RPC node for the quick check: one call that tells whether the address ever sent a transaction there or holds the native coin. If neither, the explorer is not asked.

Known limits per chain

Read from the register as well, and shown in the coverage of every result:

• Robinhood Chain: Robinhood Chain has no traces and no archive state: internal ETH transfers (for example a withdrawal paid out by a contract) are invisible. Normal transactions and token transfers are complete.
• BNB Smart Chain: BNB Smart Chain is read through NodeReal: internal BNB transfers and calldata are not listed, so contracts are only recognised by their tokens. Funder checks around a date are not available here.

Internal transfers

A plain transaction moves native coins (ETH, POL, AVAX and so on) from one address to another, and every explorer shows it. A contract can also move native coins, for example when a swap pays out in ETH. Those internal transfers only show on chains whose nodes keep traces. Where traces are missing, native coins that reached a wallet through a contract are invisible to the scan.

Robinhood Chain (4663)

Robinhood Chain has a known blind spot

Robinhood Chain gives complete transaction logs, so normal transactions and token transfers are complete. It has no traces and no archive state. That means:

• Internal ETH transfers are invisible, such as a withdrawal paid out by a contract.
• The funder can be invisible. If the ETH that paid for a wallet’s first transaction arrived through a contract, the scan cannot see where it came from, so funding source reuse may find nothing on this chain.

Every result shows this limit next to the score. A clean result on Robinhood Chain alone does not mean the wallet is private.

Asking for a chain

A chain can be added when it is EVM compatible and has a free explorer API that returns the transactions and token transfers of an address: without a key, or with a free key that the relay can hold. Open an issue in the privacy-scan repository with the chain id and the explorer.