Explore / Software

Bitcoin node software versions

User agents reported during successful handshakes. These strings describe reachable observations and can be customized or spoofed; they do not establish software integrity, voting power or consensus support.

Reachable records
3,564
Core-style user agents
3,246

Satoshi prefix, excluding Knots strings

Knots-labelled user agents
302

String contains Knots

Other or unknown
16
Self-reported user agents among reachable node records
User agentReachable nodesShare
/Satoshi:27.0.0/1,00828.28%
/Satoshi:31.0.0/36910.35%
/Satoshi:31.1.0/2537.10%
/Satoshi:25.1.0/2065.78%
/Satoshi:28.1.0/1905.33%
/Satoshi:30.2.0/1594.46%
/Satoshi:25.0.0/1283.59%
/Satoshi:29.3.0/Knots:20260508/1253.51%
/Satoshi:30.0.0/1052.95%
/Satoshi:29.0.0/952.67%
/Satoshi:28.1.0(FutureBit-Apollo-Node)/762.13%
/Satoshi:28.0.0/681.91%
/Satoshi:29.1.0/641.80%
/Satoshi:27.1.0/621.74%
/Satoshi:29.3.0/Knots:20260507/411.15%
/Satoshi:26.0.0/401.12%
/Satoshi:24.0.1/350.98%
/Satoshi:29.2.0/350.98%
/Satoshi:22.0.0/330.93%
/Satoshi:29.3.0/300.84%
/Satoshi:25.1.0(FutureBit-Apollo-Node)/260.73%
/Satoshi:0.20.0/250.70%
/Satoshi:29.2.0/Knots:20251110/200.56%
/Satoshi:23.0.0/170.48%
/Satoshi:29.3.0/Knots:20260210/160.45%
/Satoshi:0.21.1/150.42%
/Satoshi:31.99.0/150.42%
/Satoshi:29.4.0/140.39%
/Satoshi:28.1.0/Knots:20250305/130.36%
/Satoshi:29.4.0/Knots:20260508/130.36%
/Satoshi:0.18.0/110.31%
/Satoshi:29.1.0/Knots:20250903/110.31%
/Satoshi:26.2.0/100.28%
/Satoshi:0.21.0/90.25%
/Satoshi:29.3.0/Knots:20260210+bip110-v0.4.1/UASF-BIP110:0.4/90.25%
/Satoshi:27.2.0/80.22%
/Satoshi:28.2.0/80.22%
/Satoshi:29.3.0/Knots:20260210+bip110-v0.3/UASF-BIP110:0.1/80.22%
/Satoshi:31.0.0(FutureBit-Apollo-Node)/80.22%
/Satoshi:0.17.1/60.17%
/Satoshi:0.20.1/60.17%
/Satoshi:27.1.0/Knots:20240801/60.17%
/Satoshi:29.2.0(FutureBit-Apollo-Node)/Knots:20251110/60.17%
/Satoshi:29.4.1/Knots:20260508/60.17%
/Satoshi:30.1.0/60.17%
/Satoshi:22.0.0(FutureBit-Apollo-Node)/50.14%
/Satoshi:25.99.0/50.14%
/Satoshi:29.2.0/Knots:20251110+bip110-v0.1rc3/UASF-BIP110:0.1/50.14%
/Satoshi:29.2.0/Knots:20251110+bip110-v0.1/UASF-BIP110:0.1/50.14%
/Satoshi:30.3.0/50.14%

Latest observation or check: . This is a dataset activity timestamp, not the check time of every row.

Reading version distribution

A node may report a familiar software name while using a modified build. Addresses also do not correspond one-to-one with independent operators. This table is an observation of protocol strings, not a count of people choosing a policy.

Unknown strings stay in the denominator. Selecting a user agent opens the reachable node list with a text filter; text searches may also match longer strings. No individual user-agent pages are generated.

An observed view from our crawler's vantage point, not a complete census. Reachable means a successful Bitcoin P2P handshake. IP geolocation is approximate. How Atlas measures the network.

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