Sprout → Sapling
Pirate introduced Sapling in December 2018. A potential vulnerability in Sprout’s original proof system raised inflation concerns. All funds were required to cross a public turnstile to the new Sapling pool by 15 February 2019 before remaining Sprout funds were locked to ensure no counterfeit coins existed on chain.
SproutWithdrawal
TurnstileTransparent hop
SaplingShielded again
Sprout Supply Check
Sprout supply39,630,014.62129248
−Still in Sprout1,294,335.32384994
=Turnstile migration38,335,679.29744254
All public outflows accounted for
Migration evidence
Withdrawals
18,786Transactions · both legs
37,014Turnstile (ARRR)
38,333,673.35644254Withdrawal fees (ARRR)
1.8782#241249○ Unspent
Sprout withdrawala53977786dc9…eb032a61143.91762691 ARRR
→ Output #0 →Transparent output remains143.91752691 ARRR
#241246✓ Completed
Sprout withdrawale1288b658181…4b58e222348.17460288 ARRR
→ Output #0 →Sapling deposit4db2a0e1d3d8…532acd57#241247
#241234✓ Completed
Sprout withdrawal716405dcc4c0…888ac5a14,661.9999 ARRR
→ Output #0 →Sapling deposit9fe488050158…d2b4219d#241236
#241220✓ Completed
Sprout withdrawala82f2f6b28fa…0f26e44a4,066.10320145 ARRR
→ Output #0 →Sapling deposit4c8f41fe732d…fc2e4f74#241221
#241218✓ Completed
Sprout withdrawalf1b3e67daf14…e5ed68065,000.0002 ARRR
→ Output #0 →Sapling deposita3f1b2a86573…6bfd2582#241220
#241216✓ Completed
Sprout withdrawal9188899e629d…758409d35,000.0002 ARRR
→ Output #0 →Sapling deposit3dc788548552…b7d4d1db#241218
#241214✓ Completed
Sprout withdrawald594ae8b660f…fe9557865,000.0002 ARRR
→ Output #0 →Sapling deposit760e4dd9243d…f6d722ad#241216
#241212✓ Completed
Sprout withdrawal2b601b3df00b…5e1834dd5,000.0002 ARRR
→ Output #0 →Sapling deposit58f6920da2b1…a6f662ee#241214
#241211✓ Completed
Sprout withdrawal99ef6edf3d9a…afa0f31a5,000.0002 ARRR
→ Output #0 →Sapling deposit8bbb3c226865…0a567435#241212
#241210✓ Completed
Sprout withdrawal94b869937df7…4840a4c75,000.0002 ARRR
→ Output #0 →Sapling depositafbc89e83901…89fb0173#241211
#241208✓ Completed
Sprout withdrawalf3428a1c6eae…7b7196f6184.00615406 ARRR
→ Output #0 →Sapling deposit89dba6190370…a76f8d18#241210
#241208✓ Completed
Sprout withdrawal2d603ef64c86…4b22cccc5,000.0002 ARRR
→ Output #0 →Sapling depositd289ef02d138…45266e20#241210
#241207✓ Completed
Sprout withdrawal1119eb480f0a…f398ef081,567.5352538 ARRR
→ Output #0 →Sapling deposite547356d5de9…8a490921#241209
#241206✓ Completed
Sprout withdrawala3721bbc72a9…fcdc960f5,000.0002 ARRR
→ Output #0 →Sapling deposit1b82199785f7…e97b68b6#241208
#241206✓ Completed
Sprout withdrawal6fe2353371f8…4a133f445,000.0002 ARRR
→ Output #0 →Sapling depositd255b94902c3…a1f77ff8#241208
#241204✓ Completed
Sprout withdrawala10c41a7bb7b…52e97981692.2914178 ARRR
→ Output #0 →Sapling deposit83d5a961a9ab…5a5aebf0#241206
#241204✓ Completed
Sprout withdrawale3804b5e006b…bd98ca4d5,000.0002 ARRR
→ Output #0 →Sapling deposit3e3fd091049d…13bc4699#241206
#241204✓ Completed
Sprout withdrawalf892def96f59…591a2d584,515.90915766 ARRR
→ Output #0 →Sapling deposit4eddc6ebb6f9…3d555b86#241206
#241204✓ Completed
Sprout withdrawal64a7fc1392b8…a48e6226805.20681718 ARRR
→ Output #0 →Sapling deposit9b6cf52d14de…96745850#241206
#241201✓ Completed
Sprout withdrawal11810513786c…cb52d4a6369.01328203 ARRR
→ Output #0 →Sapling deposit68cb4d9417dc…9003cfee#241202
