AVAIL · L1 · QRI 15 · BAND 2 Acknowledged Hybrid FAIL · Stage 0 · Washing 1x

Avail is a data availability layer, which means its BLS12-381 attestations are load-bearing for every rollup that uses it. If Shor forges an Avail DA attestation, the chains downstream do not know. This is the quiet systemic risk: the layer you forget about is the one you cannot afford to get wrong.

inLinkedIn XPost ▼Scorecard JSON ⇆Compare Verified 2026-04-18

Summary

Avail is a Substrate-based DA layer using Sr25519 accounts, BLS12-381 validator sigs, and KZG commitments for data availability proofs. All primitives Shor-vulnerable. KZG DA commitments are a systemic risk: Shor-forged DA attestations would undermine every downstream rollup. No PQC roadmap.

What the gates say

Hybrid: FAIL. No hybrid plan on file.
Evidence: PASS. Sources reconstructable by third party.
Primitive naming: PASS. Named primitives at every scored sub-level.

Burn-vs-rescue policy on file

undeclared

Seven dimensions

Each dimension scores 0-100 internally; the weighted roll-up produces the QRI on the left. Open a row to read the sub-score detail.

1 Cryptographic Exposure 28 / 100

1a_primitive_inventory 10 / 20

Substrate DA layer with KZG commitments for data availability proofs.

Primitives: Sr25519 (Schnorr over Ristretto25519) · BLS12-381 (DA committee) · KZG commitments (data availability) · BLAKE2b-256

Evidence: blog.availproject.org

1b_shor_grover_pq_tag 12 / 20

Evidence: availproject.org

1c_algorithm_family_diversity 0 / 20

No PQC families

1d_nist_security_category 0 / 20

No NIST PQC

1e_implementation_quality 6 / 20

Evidence: github.com

2 HNDL Exposure 20 / 100

2a_active_key_exposure 5 / 20

Substrate-style SS58 addresses; pubkeys visible.

2b_cold_key_exposure 5 / 20

Mainnet launched July 2024; young chain. DA data is stored off-chain but attestations permanent.

2c_signature_longterm_validity 5 / 20

DA attestations (BLS12-381 validator sigs) and KZG commitments forgeable post-Shor — retrodecryption risk to downstream rollups.

2d_encryption_confidentiality 5 / 20

Standard libp2p noise.

3 Metadata & Privacy Exposure 20 / 100

3a_tx_graph_visibility 5 / 20

Transparent DA layer — rollup data blobs publicly queryable.

3b_rpc_mempool_concentration 5 / 20

OnFinality, Dwellir, Avail-official.

3c_cross_chain_bridge_correlation 5 / 20

Avail Nexus bridges DA attestations to multiple L1s (Ethereum, etc).

3d_retroactive_deanon_risk 5 / 20

KZG commitments retrodecrypted post-Shor would enable attacker to forge DA attestations for any rollup.

4 Migration Architecture 38 / 100

4a_crypto_agility 10 / 20

Substrate runtime upgrades via forkless runtime change. KZG hard to swap (DA core primitive).

4b_account_abstraction_key_rotation 8 / 20

Standard Substrate proxy/multisig.

4c_hard_fork_track_record 12 / 20

Short track record (~21 months mainnet).

4d_hybrid_deployment_readiness 8 / 20

No hybrid plan. Polkadot ecosystem-wide PQC would be upstream.

5 Deployment Execution 2 / 100

5a_mainnet_pqc_pct 0 / 20

no public artifact found

5b_pqc_code_in_client 0 / 20

no PQC in Avail runtime

5c_validator_pqc_adoption 0 / 20

105 validators, no PQC keys

5d_published_milestones_count 0 / 20

no PQC milestones

5e_pqc_washing_delta 2 / 20

No PQC announcements

6 Supply Chain Vendor Readiness 5 / 100

6a_wallet 2 / 20

6b_bridge 1 / 20

6c_custodian 1 / 20

6d_rpc_hsm 1 / 20

7 Governance & Coordination 35 / 100

7a_validator_stake_distribution 12 / 20

105 validators, Nakamoto coef 34 (strong).

7b_upgrade_cadence_under_pressure 8 / 20

Short history; Substrate forkless upgrades.

7c_named_coordination_lead 10 / 20

Avail team led by Anurag Arjun (ex-Polygon).

7d_adversarial_coordination_precedent 5 / 20

No precedent.

The X + Y vs Z inequality

X (data shelf life): 10+ (DA attestations remain verifiable by rollups indefinitely — high shelf life)

Y (migration time): 10-15

Z10 (10% CRQC year): 2036 · Z50 (50%): 2041

Verdict: X+Y > Z (danger).

Four-scenario grid

Scenario	Value preserved	Privacy preserved
quantum never	100%	100%
arrives suddenly pre migration	10%	10%
arrives slowly post migration	75%	60%
arrives slowly mid migration	40%	25%

Peers in the L1 profile

Order-book view of the 9 chains closest to Avail by QRI.

Public artifacts used for this scorecard

Each entry below is a sub-score citation. Clicking the link takes you to the public source. A third party should be able to reconstruct every number on this page from these URLs in 48 hours.

Cryptographic Exposure · 1a_primitive_inventory

Substrate DA layer with KZG commitments for data availability proofs.

https://blog.availproject.org/avail-the-token-powering-blockchain-unification/

Cryptographic Exposure · 1b_shor_grover_pq_tag

https://availproject.org

Cryptographic Exposure · 1e_implementation_quality

https://github.com/availproject

Supply chain snapshot

wallet Polkadot.js · SubWallet · Talisman 0 PQC roadmaps

bridge Avail Nexus · LayerZero 0 PQC roadmaps

custodian Coinbase Custody · BitGo · Fireblocks 0 PQC roadmaps

rpc_hsm OnFinality · Dwellir · Avail RPC 0 PQC roadmaps

A chain's supply chain cannot migrate faster than its slowest dependency. Zero PQC roadmaps in any of the four categories is a structural blocker, not a lagging indicator.

Analyst notes on the scoring

Systemic role as DA layer amplifies its quantum exposure risk — multiple rollups inherit Avail's crypto. Young chain (July 2024 mainnet). Strong Nakamoto coefficient (34) is one bright spot.

Scorecard metadata

Profile: L1
Scored: 2026-04-18 by layerqu-v2-scoring-agent-1
v1 reference: chainscreen-v1-archive
QRI raw: 15 · after caps: 15
Confidence interval: ±15
PQC washing ratio: 1x
Burn-vs-rescue: undeclared

Caps triggered

mosca_cap_60
sutor_stage_cap_2
casado_stage_cap_3
preskill_half_dim2_dim3_dim5_dim6
hybrid_gate_fail_cap_60