Highlights are kind 9802. Here is a sample highlight created by Colighter and published to Nostr
{"created_at":1687584444,"content":"The blocks in the blockchain were originally limited to 32 megabytes in size. The block size limit of one megabyte was introduced by Satoshi Nakamoto in 2010.[clarification needed] Eventually, the block size limit of one megabyte created problems for transaction processing, such as increasing transaction fees and delayed processing of transactions.[33] Andreas Antonopoulos has stated Lightning Network is a potential scaling solution and referred to lightning as a second-layer routing network.[7]: ch. 8 \n\n","tags":[["r","https://en.wikipedia.org/wiki/Bitcoin"],["range","type:textContent|16304$16814$1$NPKryv4iXxihMRg2gxRkTfFhwXmNmX9F$","colighter"]],"kind":9802,"pubkey":"f1bb61da368d1af794ec42968412c7baececbbef8248727098066e5e9f35d2fc","id":"949b20fb837c8dcdeeaf2dd0fff40076770473646174ef05c86ceb5bb111d575","sig":"fb00bda6d67038d39623facfa674010c09c94c06c7ec2d837ca63de7d26986959dc573ce2e5dd799ebbc8bce518c7ff80b7f624b8c139b06b8653e466842be95"}
Highlights are kind
9802. Here is a sample highlight created by Colighter and published to Nostr