Each of these is independently live and uses the same core: submit something, get back a cryptographically signed receipt you can verify yourself against a public key. The Bitcoin anchors further down timestamp the NextGenRails concept itself — they establish when these ideas existed, not a per-receipt anchor on any product.
These OP_RETURN transactions timestamp key milestones of the NextGenRails concept to the Bitcoin blockchain — public, tamper-evident proof that these ideas and documents existed by the dates below, verifiable by anyone on a block explorer. They record when the work existed; they are not a per-receipt anchor on any product, and they are not a claim of ownership or novelty beyond that.
Each anchor is independently auditable on any Bitcoin block explorer by looking up the block height above.