Trading activity:
Reported 24-hour volume equals 0.20% of market capitalization.
YearBull indicators:
Bull Score 0/100.
YB Market Risk —. This relative market-volatility label is not an investment-safety assessment.
Observed price change: 24h 0.00% · 7d 0.00% · 30d -53.47%.
Values are descriptive and should be read together rather than as a price forecast.
Read the YearBull methodology.
Snapshot date: 2026-02-27.Data history: 50 daily observations available in the latest 90-day window.
Methodology responsibility:
YearBull’s analytical methodology and presentation rules are developed and maintained by
Alan Zelvin, Founder & Lead Crypto Researcher.
This note identifies responsibility for the methodology; it does not attribute authorship of this data snapshot.
What is OPCAT (OPCAT)?
Source description
“We propose a novel UTXO-based token protocol on Bitcoin, called Covenant Attested Token (CAT) Protocol. It is miner validated and uses smart contracts, specifically covenants, to manage token mints and transfers. Compared with all existing token protocols on Bitcoin, it is solely enforced by Bitcoin Script at Layer 1 and has the following features. CAT protocol supports both fungible tokens (called CAT20 standard) and non-fungible tokens (called CAT721 standard). The techniques developed here are general purpose and can be applied in use cases beyond tokens.”
This source-supplied description may contain old, promotional, or unverified claims and is not YearBull editorial analysis.
Official links and contract records appear in Key Facts. Project details can change, so verify current information with the project.
OPCAT (OPCAT) FAQ
How does the Covenant Attested Token (CAT) Protocol use Bitcoin’s UTXO model?
The project describes CAT as a UTXO-based token protocol built for Bitcoin. It uses Bitcoin’s transaction-output structure to represent and manage token activity, while covenants—smart-contract-like spending conditions—govern how token mints and transfers are handled. This design is presented as a way to coordinate token operations within Bitcoin’s existing Layer 1 scripting framework.
What does miner validation mean in the CAT Protocol?
CAT is described as miner validated, meaning its token rules are intended to be checked as part of Bitcoin transaction processing rather than by a separate token-indexing authority. The project states that minting and transfers are enforced through Bitcoin Script at Layer 1, with miners validating transactions according to the applicable protocol conditions.
What is the CAT20 standard used for?
CAT20 is the protocol’s stated standard for fungible tokens. Fungible assets are interchangeable units, so each token of a given CAT20 issue is intended to have the same characteristics as another unit of that issue. The project presents CAT20 as one of two token formats supported by the CAT Protocol, alongside its non-fungible CAT721 standard.
How does CAT721 differ from CAT20?
CAT721 is presented as the CAT Protocol’s standard for non-fungible tokens, while CAT20 is intended for fungible assets. Non-fungible tokens are individually distinguishable rather than interchangeable on a one-for-one basis. The project states that both formats can use the same covenant-based, Bitcoin Script-enforced framework for managing mints and transfers.
What is distinctive about the CAT Protocol’s Layer 1 enforcement?
The project claims that CAT is enforced solely by Bitcoin Script at Bitcoin’s Layer 1, rather than relying on an external execution layer for its core token rules. Its stated approach combines Bitcoin’s UTXO model with covenants to manage token operations. The project also describes the underlying techniques as general purpose and potentially applicable beyond token issuance.
OPCAT metric comparison
This comparison is a stored snapshot generated 2026-10-23 06:31 UTC from 50 daily observations available from 2025-12-30 through 2026-02-27. It is separate from the latest analytical cards above. Percentiles compare the snapshot value with that day's analytical universe; a higher percentile means a larger observed value, not necessarily a better investment characteristic.
Metric
Snapshot
30d before
90d before
Change vs 30d
Universe percentile
Price
$0.0133
$0.0286
n/a
-53.5%
n/a
Market cap
$279.5K
$600.8K
n/a
-53.5%
P38.8
YearBull Rank
n/a
#3,857
n/a
n/a
n/a
Bull Score
n/a
39/100
n/a
n/a
n/a
Turnover
0.20%
0.65%
n/a
-0.4 pts
P28.4
YB Market Risk
n/a
Low
n/a
n/a
n/a
Cycle
n/a
Mid
n/a
n/a
n/a
Median absolute daily movement 0.02%; distance from the highest local daily price -72.5%; circulating supply change 0.0%. These measurements are descriptive and do not predict future direction.
YearBull Rank update
Current YearBull Rank for opcat-2: #3995.
Rank timeline (last 365 days)
Rank movement (time windows).
Reading rule: lower is better in this ranking.
7d window: no reference point available.
30d window: no reference point available.
YearBull Rank is a relative ranking on YearBull designed to compare coins on a common scale and time window. It is a context signal for relative placement, not an outcome forecast.
Risk read: consistency often matters more than speed.
Venue angle: improvement with higher churn can be a rotation phase.
Market depth: a quiet tape can still re-rank the pack.
Market phase: a quick bounce can still be a mean-reversion phase.
Editorial note:
This analysis was prepared by the YearBull research team under the direction of
Alan Zelvin,
Founder and Lead Crypto Researcher.
The assessment follows YearBull’s internal research methodology and editorial standards.
Methodology ·
Editorial Policy
Related Research
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Stored venue snapshot. Markets last checked: 2026-02-26. Updated on a rolling basis; no fixed refresh date is promised. Venue listings and volumes are stored snapshots, not live quotes.
Current YearBull daily analytics are not available for this asset yet; market listings have separate freshness.
No exchange markets were returned by the public venue source when last checked on 2026-02-26.
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