Those are all very good points I didn't think about, thanks for these.
I'll fix the two bugs with verify_block and the possibility for a miner to inject invalid a output > input transaction.
I'll add a note for the 3 others.
I'll fix the two bugs with verify_block and the possibility for a miner to inject invalid a output > input transaction.
I'll add a note for the 3 others.
Most current blockchains sign a binary representation with fixed length fields. In terms of JSON, JSON-LD is for graphs and it can be canonicalized. Blockcerts and Chainpoint are JSON-LD specs:
> Blockcerts uses the Verifiable Claims MerkleProof2017 signature format, which is based on Chainpoint 2.0.
https://github.com/blockchain-certificates/cert-verifier-js/...
> #python news: @gvanrossum just pronounced that dicts are now guaranteed to retain insertion order. This is the end of a long journey.
https://twitter.com/raymondh/status/941709626545864704
More here: https://www.reddit.com/r/Python/comments/7jyluw/dict_knownor...
OrderedDicts are backwards-compatible and are guaranteed to maintain order after deletion.