Hedera
A distributed ledger network based on Hashgraph technology, providing high-throughput, low-fee enterprise-grade blockchain services. Its native token is HBAR, and the network supports EVM-compatible smart contracts, asset tokenization, and decentralized application development.
Timeline (last 90 days)
HCS messages can be read through the free public mirror node without an SDK, and the testnet mirror node address is https://testnet.mirrornode.hedera.com/api/v1/topics/{topicId}/messages.
iBird is a single-topic social app already live on mainnet, with topic ID 0.0.10905465 and a cost of about $0.0008 per message.
You can register at portal.hedera.com and apply for a testnet account, obtaining an account ID, an ED25519 private key, and free testnet HBAR, with no credit card required.
ED25519 is an elliptic-curve-based digital signature algorithm and is one of the two key types supported by Hedera accounts, the other being ECDSA.
Hedera private keys typically appear as DER-encoded strings, and the SDK's PrivateKey.fromString() can automatically recognize and parse that format.
The testnet and mainnet account systems are completely isolated, and testnet private keys cannot be used for mainnet transactions, and vice versa.
The Topic ID uses a three-part shard.realm.num identifier, where the first two parts are fixed at 0 in the current network and the third part is assigned by the network after the transaction reaches consensus.
Hedera positions agent accounts as non-custodial spending accounts
The interpretation of Hedera's official announcement emphasizes that agents do not hold any balance and that user funds remain in the wallet until a legitimate purchase is executed
Crypto.News and Hedera's official announcement have overlapping discrepancies in their wording regarding whether agents hold funds
3 more timeline events
All Facts (12)
HCS messages can be read through the free public mirror node without an SDK, and the testnet mirror node address is https://testnet.mirrornode.hedera.com/api/v1/topics/{topicId}/messages.
50%UnverifiedYou can register at portal.hedera.com and apply for a testnet account, obtaining an account ID, an ED25519 private key, and free testnet HBAR, with no credit card required.
50%UnverifiedED25519 is an elliptic-curve-based digital signature algorithm and is one of the two key types supported by Hedera accounts, the other being ECDSA.
50%UnverifiedHedera private keys typically appear as DER-encoded strings, and the SDK's PrivateKey.fromString() can automatically recognize and parse that format.
50%UnverifiedThe testnet and mainnet account systems are completely isolated, and testnet private keys cannot be used for mainnet transactions, and vice versa.
50%UnverifiedThe Topic ID uses a three-part shard.realm.num identifier, where the first two parts are fixed at 0 in the current network and the third part is assigned by the network after the transaction reaches consensus.
50%UnverifiediBird is a single-topic social app already live on mainnet, with topic ID 0.0.10905465 and a cost of about $0.0008 per message.
50%UnverifiedHedera positions agent accounts as non-custodial spending accounts
50%UnverifiedThe interpretation of Hedera's official announcement emphasizes that agents do not hold any balance and that user funds remain in the wallet until a legitimate purchase is executed
50%UnverifiedAfter the contract is deployed, even the Hedera team itself cannot unilaterally bypass the limits set by the user
50%UnverifiedHedera's agent accounts can be viewed as a concrete implementation of M2M payment infrastructure, addressing the authorization questions of under what conditions, to whom, and how much an AI can pay
50%UnverifiedHedera has launched an agent accounts mechanism for AI agents
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