Bitcoin breaks $70k as on-chain data shows thin resistance to $81k

URPD shows a supply gap above $72k for Bitcoin. Resistance up to $81k may be light.

Analyst Ali Martinez shared the URPD view on X. Source: URPD chart and commentary. What URPD means. Source: UTXO Realized Price Distribution explainer.

Key levels from the chart:
- $60k–$70k holds dense supply. Source: URPD chart
- $67k stands out as a heavy node. Source: URPD chart
- $72k–$81k looks thin on supply. Source: URPD chart

BTC cleared $70k this week. Source: breakout coverage.

“if momentum builds, there is open air in that range.” Source: Ali Martinez.

Dense zones below can act as support. Buyers often defend cost basis. Source: cost basis dynamics.

At writing, BTC trades near $70,500, up 4% week over week.